basic geometry circle stuff | Mathematics | Page 1

glad ginkgo Mar 23, 2024, 4:48 PM

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Help

iron snowBOT Mar 23, 2024, 4:48 PM

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glad ginkgo Help

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long lodge Mar 23, 2024, 4:48 PM

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glad ginkgo Help

there is a diameter

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what is true about x in this case then?

glad ginkgo Mar 23, 2024, 4:48 PM

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theres no numbers so im confused

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is it 90

long lodge Mar 23, 2024, 4:49 PM

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why would it be 90

glad ginkgo Mar 23, 2024, 4:49 PM

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because its martobuli

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let me google how to say that in english

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perpendicular

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or something

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idk

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explain lol

long lodge Mar 23, 2024, 4:50 PM

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why do you think it’s perpendicular

glad ginkgo Mar 23, 2024, 4:50 PM

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guessing

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intuition

long lodge Mar 23, 2024, 4:50 PM

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okay there’s a theorem that says this is true

glad ginkgo Mar 23, 2024, 4:50 PM

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its perpendicular

long lodge Mar 23, 2024, 4:50 PM

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if you have a diameter of a circle and then

glad ginkgo Mar 23, 2024, 4:50 PM

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because the lines are kinda straight

long lodge Mar 23, 2024, 4:50 PM

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draw a triangle

glad ginkgo Mar 23, 2024, 4:50 PM

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lol

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💀

long lodge Mar 23, 2024, 4:50 PM

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then you have a right angle

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remember that

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anywhere

glad ginkgo Mar 23, 2024, 4:51 PM

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ok so theres always a perpendicular angle when you draw a triangle in a circle

long lodge Mar 23, 2024, 4:51 PM

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as long as you have a diameter of the circle as one of the legs

glad ginkgo Mar 23, 2024, 4:51 PM

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So X is 90

long lodge Mar 23, 2024, 4:51 PM

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glad ginkgo ok so theres always a perpendicular angle when you draw a triangle in a circle

nope

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one of the sides has to be a diameter

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or else it isn’t true

glad ginkgo Mar 23, 2024, 4:51 PM

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Diameter is the line that runs on the center right

long lodge Mar 23, 2024, 4:51 PM

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yes

glad ginkgo Mar 23, 2024, 4:51 PM

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ok so as long as theres a diameter on the center

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theres always perpendicularity

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Bet

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ok so X is 90

long lodge Mar 23, 2024, 4:52 PM

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yup

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good circle fact to know

glad ginkgo Mar 23, 2024, 4:52 PM

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ye it opened up the next few tasks for me too

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i can understand them

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from a simple tip u gave me

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thanks bro

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ill keep this channel open just incase

wind apex Mar 23, 2024, 4:54 PM

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90

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degrees

glad ginkgo Mar 23, 2024, 4:54 PM

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damn im confused again

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one sec

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let me drop the pic

silent scaffold Mar 23, 2024, 4:54 PM

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wind apex 90

No need to just write the answer.

glad ginkgo Mar 23, 2024, 4:54 PM

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silent scaffold No need to just write the answer.

it has been explained

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already

silent scaffold Mar 23, 2024, 4:54 PM

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Well, especially in that case 😅

wind apex Mar 23, 2024, 4:54 PM

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you here too?

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damn

glad ginkgo Mar 23, 2024, 4:54 PM

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ignore the shit i wrote

wind apex Mar 23, 2024, 4:54 PM

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aight he could help you

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imma do my sleep

glad ginkgo Mar 23, 2024, 4:55 PM

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find X in that mess

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and try not to break ur neck trying to see a flipped image

silent scaffold Mar 23, 2024, 4:55 PM

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glad ginkgo

Not sure what you're doing here.

long lodge Mar 23, 2024, 4:55 PM

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glad ginkgo

okay so their whole thing here is 90

wind apex Mar 23, 2024, 4:55 PM

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oh

glad ginkgo Mar 23, 2024, 4:55 PM

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basically top is 90 right

silent scaffold Mar 23, 2024, 4:55 PM

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It's not correct, though.

long lodge Mar 23, 2024, 4:55 PM

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not just that part

wind apex Mar 23, 2024, 4:55 PM

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45

glad ginkgo Mar 23, 2024, 4:55 PM

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so its 45 - 45

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i thought it got split in half

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because of the life

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line

long lodge Mar 23, 2024, 4:56 PM

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hmm

wind apex Mar 23, 2024, 4:56 PM

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wait no

long lodge Mar 23, 2024, 4:56 PM

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how many sides of that triangle are equal?

glad ginkgo Mar 23, 2024, 4:56 PM

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OH

silent scaffold Mar 23, 2024, 4:56 PM

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Oh, alright, you got it.

long lodge Mar 23, 2024, 4:56 PM

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wind apex 45

my guy this is not a speed solving contest lol

wind apex Mar 23, 2024, 4:56 PM

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why tf yall here 😭

glad ginkgo Mar 23, 2024, 4:56 PM

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I UNDERSTAND

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WAIT

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give me a moment

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ill be back with another solution

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if its incorrect again then explain

wind apex Mar 23, 2024, 4:56 PM

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long lodge my guy this is not a speed solving contest lol

quick math

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it is a habit :<

long lodge Mar 23, 2024, 4:56 PM

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doesn’t help the posters tho

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you can have the answer in mind but make sure to explain the methods

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well

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give them a hint so they find the method

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it solidifies learning better

glad ginkgo Mar 23, 2024, 4:57 PM

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Shite

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im incorrect again

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ok explain

silent scaffold Mar 23, 2024, 4:57 PM

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glad ginkgo Shite

Can you show what you did?

glad ginkgo Mar 23, 2024, 4:57 PM

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ok

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one sec

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damn

silent scaffold Mar 23, 2024, 4:58 PM

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That's not correct. None of the angles there are 45 degrees.

glad ginkgo Mar 23, 2024, 4:58 PM

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wait

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the top doesnt get split?

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Which ones perpendicular then

silent scaffold Mar 23, 2024, 5:01 PM

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glad ginkgo Which ones perpendicular then

I assume this was the initial picture?

glad ginkgo Mar 23, 2024, 5:01 PM

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yes

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plus the 2 lines

silent scaffold Mar 23, 2024, 5:01 PM

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Ah, wait, no. Hold on.

glad ginkgo Mar 23, 2024, 5:01 PM

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because its equal

wind apex Mar 23, 2024, 5:01 PM

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actually the fact that the two sides of the triangle is helpful as that would meant it is an equilaterial

glad ginkgo Mar 23, 2024, 5:01 PM

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did i hear lateral

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https://tenor.com/view/jay-cutler-bodybuilder-shoulders-gif-20775161

Tenor

wind apex Mar 23, 2024, 5:02 PM

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and so the angle of those are 60

glad ginkgo Mar 23, 2024, 5:02 PM

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ok

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ill try it

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so its 30

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X is 30

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Wait

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i understand now

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yea its 30

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this the last one of this test

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i solved all of them except this one left

wind apex Mar 23, 2024, 5:03 PM

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Next now we have 90 - 60 = 30 for the above angle, and 120 for the lower

glad ginkgo Mar 23, 2024, 5:03 PM

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ye ik those

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i did them

silent scaffold Mar 23, 2024, 5:03 PM

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Like this, right?

wind apex Mar 23, 2024, 5:03 PM

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that would meant x is actually 30

glad ginkgo Mar 23, 2024, 5:03 PM

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yea

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i understand

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Thanks

wind apex Mar 23, 2024, 5:03 PM

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cool

silent scaffold Mar 23, 2024, 5:03 PM

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Ah, you got, nice!

wind apex Mar 23, 2024, 5:03 PM

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tbh

glad ginkgo Mar 23, 2024, 5:03 PM

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this one tho

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much confusemention

wind apex Mar 23, 2024, 5:04 PM

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oh another quickie

glad ginkgo Mar 23, 2024, 5:04 PM

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60 is on such a weird angle

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theres also 1 after this

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and theres like 12 more after

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but ill probably ask someone else

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to not bother u

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lmao

wind apex Mar 23, 2024, 5:04 PM

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sure

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well im not bothered

glad ginkgo Mar 23, 2024, 5:04 PM

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you enjoy math?

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I wish i did too i say this all the time lmao

wind apex Mar 23, 2024, 5:04 PM

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yeah, im the riddle maker.

silent scaffold Mar 23, 2024, 5:04 PM

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wind apex oh another quickie

Hm, I actually don't immediately see the approach here. Any advice?

glad ginkgo Mar 23, 2024, 5:04 PM

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hey then ill bomb you with all the math you need

wind apex Mar 23, 2024, 5:04 PM

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i do enjoy math to do thay

glad ginkgo Mar 23, 2024, 5:04 PM

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silent scaffold Hm, I actually don't immediately see the approach here. Any advice?

Makes me feel good

silent scaffold Mar 23, 2024, 5:05 PM

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glad ginkgo hey then ill bomb you with all the math you need

Try it yourself first, though.

silent scaffold Mar 23, 2024, 5:05 PM

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glad ginkgo Makes me feel good

I can't say I'm good at geometry.

glad ginkgo Mar 23, 2024, 5:05 PM

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i already solved the 14/16 thats on this test

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i have 2 left i couldnt

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thats why im sending it here

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already tried em all

wind apex Mar 23, 2024, 5:05 PM

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silent scaffold Hm, I actually don't immediately see the approach here. Any advice?

ah there just some theorem you need to know about angles and chord in circle.

long lodge Mar 23, 2024, 5:05 PM

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yea isn’t there that one theorem that just tells you two angles are equal in this type of silly diagram

wind apex Mar 23, 2024, 5:06 PM

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like the fact that x is the same angle of that 60 degree angle.

glad ginkgo Mar 23, 2024, 5:06 PM

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waiot

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if x is 60

wind apex Mar 23, 2024, 5:06 PM

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yeah

glad ginkgo Mar 23, 2024, 5:06 PM

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is every side 60

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is every angle 60

wind apex Mar 23, 2024, 5:06 PM

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yeah

glad ginkgo Mar 23, 2024, 5:06 PM

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then i understand the theorem

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yes

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so 60, 60 , then 60 60 60

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ez

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🤣

silent scaffold Mar 23, 2024, 5:06 PM

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Really? But can't the vertex of angle x be moved along the circle?

glad ginkgo Mar 23, 2024, 5:06 PM

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OK

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last one of this test

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that confused me

silent scaffold Mar 23, 2024, 5:06 PM

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I feel like its position is arbitrary.

wind apex Mar 23, 2024, 5:07 PM

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not really, it is tangent.

glad ginkgo Mar 23, 2024, 5:07 PM

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long lodge Mar 23, 2024, 5:07 PM

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oh you can derive this

glad ginkgo Mar 23, 2024, 5:07 PM

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listen

long lodge Mar 23, 2024, 5:07 PM

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you don’t need to memorize it

glad ginkgo Mar 23, 2024, 5:07 PM

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i thought it was 2x

wind apex Mar 23, 2024, 5:07 PM

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long lodge oh you can derive this

yeah

long lodge Mar 23, 2024, 5:07 PM

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glad ginkgo

so if you split this into three eqlatirtal triangles

wind apex Mar 23, 2024, 5:07 PM

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i did it so it took me a while cause kinda forgor

long lodge Mar 23, 2024, 5:07 PM

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by drawing lines from the centre of the circle to the edges

silent scaffold Mar 23, 2024, 5:07 PM

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Nah, no more geometry for me now, I'm already having a headache this whole day...

glad ginkgo Mar 23, 2024, 5:08 PM

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long lodge so if you split this into three eqlatirtal triangles

I do not know that a eqlantirnltal is

long lodge Mar 23, 2024, 5:08 PM

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and then using tangent definitions

long lodge Mar 23, 2024, 5:08 PM

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glad ginkgo I do not know that a eqlantirnltal is

mb

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also wrong triangle 💀

glad ginkgo Mar 23, 2024, 5:08 PM

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i probably know it

long lodge Mar 23, 2024, 5:08 PM

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isosceles **

glad ginkgo Mar 23, 2024, 5:08 PM

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i just dont know in english

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im learning georgian math

long lodge Mar 23, 2024, 5:08 PM

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triangle

glad ginkgo Mar 23, 2024, 5:08 PM

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whats isosceles

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the equal sides triangle?

long lodge Mar 23, 2024, 5:09 PM

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two equal sides

glad ginkgo Mar 23, 2024, 5:09 PM

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one sec

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i might get it

wind apex Mar 23, 2024, 5:09 PM

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glad ginkgo

it is the same angle

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kinda sneaku

long lodge Mar 23, 2024, 5:09 PM

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centre of circle, all the green are radius

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and then you can find one angle using the 60

wind apex Mar 23, 2024, 5:09 PM

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sneaky but if you noticed the fact that it have a common chord you are done.

glad ginkgo Mar 23, 2024, 5:10 PM

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nah

wind apex Mar 23, 2024, 5:10 PM

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yeah

glad ginkgo Mar 23, 2024, 5:10 PM

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i failed

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i dont understand

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explain

wind apex Mar 23, 2024, 5:10 PM

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doggo get it

long lodge Mar 23, 2024, 5:10 PM

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long lodge and then you can find one angle using the 60

then x is bisected and all the edges are equal

glad ginkgo Mar 23, 2024, 5:11 PM

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no

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im not talking about that

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i already understand that

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long lodge Mar 23, 2024, 5:11 PM

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mm @wind apex you explain the theorem or whatever

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i hate circles

glad ginkgo Mar 23, 2024, 5:11 PM

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i hate math

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jk

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math is nice

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but not when theres your whole life pressure on you

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if i fail my exam im fucked

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why is 1 exam determining my whole life future

wind apex Mar 23, 2024, 5:13 PM

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glad ginkgo explain

denote each of the point where the chord intersect circle A, B, C, D. and let <ABC be the angle 48 you see there, now then the angle <ADC is x, but those angle are from the same chord AC, it is the same. hence x = <ABC = 48 degree

glad ginkgo Mar 23, 2024, 5:13 PM

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OK

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ill probably understand one day

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time to move on the next test

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Wow what the fuck is thi

wind apex Mar 23, 2024, 5:14 PM

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dont be too pressed about it.

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you be better if you do it enough time.

glad ginkgo Mar 23, 2024, 5:14 PM

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it says 110 in the circle

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how can a circle be 110 degrees

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no angles no nothing

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just 110 degrees

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im done for today ill have a little break

wind apex Mar 23, 2024, 5:15 PM

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if the chord really close to the point.

glad ginkgo Mar 23, 2024, 5:15 PM

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i got 5 days of nonstop math lessons IRL anyways

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thanks for the help guys you are all chads

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peace out

wind apex Mar 23, 2024, 5:15 PM

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then the angle can be over 90

glad ginkgo Mar 23, 2024, 5:16 PM

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!Close

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/close

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-close

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whatever fuck this

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bye

long lodge Mar 23, 2024, 5:49 PM

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+close

#basic geometry circle stuff