#geometry-and-trigonometry
1 messages ยท Page 290 of 1
yes
so if i answer this problem would i be smart as a mathmatician
lol
yes
that if u can get this correctly
we will admit to you that you are smarter than ramonov and can beat him in chess
only if u can get it right
we will admit to you that you are smart than ramonov
@ebon sundial * We'll admit that you're smarter than ramonov
i have to solve this
you have 3 seconds to give us an answer because a mathician could solve this in 3 secs flat
but we was testing to see if he actually know that
@ebon sundial remember our deal
Do you think anyone who is in trigonometry class won't know addition lol?
no take backs
Bro he got it wrong
me?
It's 21
@cedar tendon fine we admit to you are smarter than ramonov. and you can beat him in chess.
YES
no
Anyways
No ur not
no
You know the deal
that was the deal
help him
im smarter than ramonov and i can beat him in chess
No one is smarter than Stroganoff
Anyways
and mr.tai remember our deal you will help me with the question
is r=12+12sin(theta) a limacon without a loop or a cardioid graph? idk where to put this its kinda trig lmao
repost it @cedar tendon
find
if youre so smart answer it yourself
is r=12+12sin(theta) a limacon without a loop or a cardioid graph?
Did you watch the video? @cedar tendon
yea
@cedar tendon https://youtu.be/Qz_7T0GpCFU
Related Test: https://www.youtube.com/watch?v=k59R3sDxiSg&list=PLJ-ma5dJyAqrHdfR33wo87sl5PYidcnc1&index=2
#GCSE #IBSL #SAT #MHF4UanilKumar
@desert vortex cardiod bc a=b
and i got 461
im so dumb hahahha
Did you write your solutions down on paper?
thank you
np ๐
@sinful anvil no, this is patrick
Shall I summon the mods?
^
is r=6-6sin(theta) a limacon without an innerloop?
so we gotta give him this one
with the quesiton
yeah i graphed it kek
@cedar tendon was in line 1st
huh why polar axis
461
bc its not symmetric to pi/2
@cedar tendon post your solutions on here
i need help
what how is it not symmetric to pi/2
@cedar tendon what makes you doubt that its wrong
am i tripping this hard
because no one told me it right
lol
ya k 1 min
I told you to post your solutions on here @cedar tendon
i was correct kek
So if you made mistakes, we'd point it out
ok
@sinful anvil Ya the video was wrong
im stupid
the problem had nothing to do with arc length
u already know the central angle
Well theta is 120?
ya
Radius is 21
120/360 * pie * 441 and i got 461pie
math it is wrong
Imma ping helpers lol
its good lol
<@&286206848099549185>
ya ur good
lol bye
they told me it wrong
ok
Any other questions?
Radians A-Level maths revision (AS and A2). Radians, like degrees, are a way of measuring angles.
I found this lol
ok
@cedar tendon 15 mins before pinging helpers
I did like 10 minutes before lol
It's fine, just don't do it again
Too many trolls were in here
ok
@cedar tendon do you know the formula for area of a sector
nope
It represents the angle
@sinful anvil it was literally one of his questions that we answered
but ofc he doesn't know it
smfh
Maybe because someone mislead him?
ok
I'm talking to math I give up or whatever
What's theta in your problem
So you can apply the formula
It's Pi/3
Again, I'm asking @cedar tendon
this is my problem
N?
idk
oh yea
IAmJon:
It's a number
ok
But you're correct that pi/3 is theta, as it is the angle of the arc you're considering
Now we just need the radius
yea
So you know what theta and r are, so you can just plug 'em into the formula
With me?
ok
Can you do that?
but what the formula?
So you know that A=(1/2)(theta)(r^2), right?
That's the formula
ok
Remember you want to find the area
And this gives the area of the sector if you know the radius and angle, which you do
ok
Can you plug values into a formula, or do you want me to show you how this time?
ok
It's either/or
he doesn't know the difference
what is it
I don't wanna ruin it for @cedar tendon
I'll tell you in dm's
yee
yes
Wumbo:
Compile Error! Click the
reaction for details. (You may edit your message)
My lord
yep
$\frac{1}{2}\cdot\frac{\pi}{3}\cdot 4^2$
It's 8pi/3
IAmJon:
oh
ok
Don't forget the pi, but otherwise you're good @cedar tendon
oof
This is basically the same, except you have to work a little harder to find theta
Can you find theta?
how do i do this
this is not 461 pi
@sinful anvil
the answer is 147 pi which is = to 461
@cedar tendon which one did u choose
@cedar tendon Hello
what
wth
ok
i have nothing else to do anyway
i have none
u do know the radius
oh
bruh wtf is wrong with u
now cut the circle into 8 pieces
we literallly did so many fking questions
Wumbo:
$\frac{8\pi}{3}$
Wumbo:
how did u get that
this is my problem
what
oh nice
so guys so what are the steps i need to do to solve this
Did you draw the circle with a radius of 12 that's equally cut into 8 slices
@sinful anvil wait how did u get 8pi/3
i got 0.83
@upper karma
u need to do that but wont
i got 12.5
i got it for this problem
i got 12.56
1/2 * pi x 12^2
@cedar tendon What exactly did u do
bruh how do u not know this
wait
@cedar tendon Why did u multiply it by 1/2
explain to me
not exactly what we did last problem
we use the idea
ya idk anymore
So we doing this one right
@cedar tendon
yea
see how the circle is cutted into 8 equal slices
we know the area of the circle is pi * 12^2 right
if you wanna find 1 slice
@cedar tendon
what would u do
we gotta do pi * 12^2
idk
man i wonder if the next question is harder than this one
ok thats the first part
thats the area of the circle
now see how it says the circle is cutted into 8 pieces
ok
how would u find 1 piece
idk
144/8?
yea
ur not the kid tho
144pi / 8
@cedar tendon Hello
and if u know 1 piece
just multiply it by 3
to know the area of 3 pieces
ok
@sinful anvil Im bad at this, u wanna take over
im also currently taking geometry right now
@cedar tendon hello
i got 53
144/8 x 3 and i got 53
no its 144 pi / 8 x 3
lol
What's the next one lol
the next question probably will be harder than this
true
oof
need help
${81\pi}$
Wumbo:
Compile Error! Click the
reaction for details. (You may edit your message)
Wumbo:
Is the area of the sector
oh 144
54pi
ok
use the formula for the area of a circle
(google it if you don't know)
then write it as = 360
then formula for area of a sector of a circle = x
@upper karma idk the radius
is it pir^2
yep
pi * (x^2) = 81 * pi
solve for x
where the x
i don't know how to solve for x
so what is the equation?
ok, what are you confused about?
yea
yes
81 pi means 81 * pi
yea
all right, so:
Area = pi * r^2
Area = 81 * pi
pi * r^2 = 81 * pi
now divide both sides of the equation by pi
both sides (of the equal sign)
we don't know what is r so how am i supposed to divide it
yes'
why?
because it cancel out
ok
meaning "what" x "what" = 81
dude so what is the square root of 81?
do you have a calculator?
dspider so what is the square root of 81
im on mac
ok, let me google what OSX calculator looks like...
ok
so what is the square root of 81
dude
then you have access to those features
use the calculator, Luke
good job
now you have the radius
let me see
ok
yeah, that's wrong
you just multiplied 81 with pi
"81 pi" is the area for the entire circle
(which I got by googling "formula for area of sector of a circle")
ok
it's a Greek letter
what it means
called theta
what a theta
it's a way to represent angles, kind of like how x is in an equation
ok
do you see the blue area of the segment?
so the theta is 81
i got 57.25
you need to isolate theta to one side of the equation
im confused
that's ok, about what?
their no a and b in the image
i did now what
81 and 360
here's another way to solve it:
do me a favor, change your nickname
because it doesn't help you
it doesn't help your outlook on math
and influences how you treat it
don't keep telling yourself that
say math is easy
and please don't start with the asian kid
ooooh, there's an asian kid in your class
so what?
no, it wasn't easy for me
@cedar tendon did you checked DM
in fact, the above solution is kind of dumb ๐
the "proper" solution is to divide both sides and stuff, not use number/1
like I did
but it works
so... 
dude their this asian kid in my class math is so easy for him compare to me it hard everything in math is hard but everyone in my class follow the asian kid except me
the asian are born with math intelligent except me
that why im bad at math
I 100% guarantee you that kid practiced, and read, and studied his ass off
that's why you think he's good
it's not "genetics" or some shit like that, lmao
that asian kid in my class alway have an A
in any mathwork
im not like him
i usually gets D
yes, because his parents probably pay for his tutoring, or they put pressure on him to study instead of playing vidya
because is math is so hard
it's asian culture
it brings shame to his parents if he doesn't do well in school
don't compare to that kid
fuck that kid
lol
@cedar tendon i am asia
and dude last time my teacher made this contest to see who would answer the most equation and we gotta be up against our classmates to see who wins for me i was the worst one the teacher told us our score in the classroom and i. was failed and. i gotten 1 point for doing 1 equation that was hard but my other classmates got more points than me and highest was that asian kid
and math is so hard
for me
people called me. a loser of the class cause of it
sense im the worst
one
yeah, that sucks... boo-hoo... stop
stop right now and listen to what I'm saying
you need to stop comparing yourself to the other kids
work on your own knowledge
study the material, look up everything you don't know
you still haven't changed your nickname
noo
do it nao
dspider was abundantly clear in asking you to change your nickname
no new nick, no help
no new nick, no help
Ann you support this
no new nick, no help
because you've been told multiple times to do it and have completely ignored it every single time
i'm not gonna repeat the reasons why i and everyone else here think you should change your nickname
so
no new nick, no help
but in rules it never said i. should change name
you're ignoring people
no new nick, no help
no new nick, no help
no new nick, no help
no new nick, no help
no new nick, no help
no new nick, no help
but in the rules it never i. said i should change my name
no new nick, no help
following the rules is necessary but not sufficient to get help
we are not machines mindlessly checking everyone for compliance with rules and always helping those who don't break any
and i. didn't break any so im asking for help
and everyone's been ABUNDANTLY CLEAR on saying
no new nick, no help
well ok
DSpider and i so far
i'm pretty sure a lot of ppl would follow suit
no one wants to help you since your name pollutes the air with a smell of desperation and helplessness
What
dude it just name
im jsut telling everyone math is hard for me
what wrong with that
there is no obligation for anyone to help anyone.
but if don't demonstrate that you have an appropriate attitude to learning such as:
-insisting that you only want the answer
-not looking up recommended materials when you have knowledge gaps
-using a nick that shows a disdain towards learning math
then people are less likely to help you
oh ramonov you are back
and this applies to all forms of learning, not just math
i thought u were gone forever
Ramonov i need help
with my math problem
help me ramonov
since it is impossible for a human to make exact cuts it is impossible
Q.E.D
@cedar tendon DM\
i need help someone please help me
Yes mr.tai thank you so much
So, what is the problem?
well think of that protractor as half of a cake.
now you'd have to split it in 5 slices
since it's just a half.
Yea you can maybe think that.
so basically once every x degrees you'd have to cut that half.
considering that a protractor measures 180 degrees.
and there must be 5 slices for one half.
basically divide the protractor in 5 equal parts.
which is easy since you have the degrees written on it.
Yea the protractor measures 180 degrees.
the question comes down to: how many degrees must an arc measure so that we have 10 equal slices?
so?
there are 360 degrees in one full circle
basically 2 protractors
Yes
what's the equation we're left with?
@silent plank im just doing this
to help him out
i feel like he need some help
i am thinking
umm dude im helping someone
sorry my disc lagged out showed no new messages
Ok!
now what we do
Lets continue with the problem we were on so what equation did we have left with?
๐
Well calm down and think about it.
ok
so 360/x = 10
360/180 right
Noo
180 is half of 360
5 is half of 10
Think of it this way, a circle is 360 degrees, and you to distribute it evenly among 10 people, the tool you get is a protractor, which is half the degrees of a circle, meaning you can use it on half the people, and half the cake at a time
solve for x
to divide 360 into 10 equal parts you would divide 360 by 10
360/180=10
hm
36/18 = 10 therefore
2=10????
@cedar tendon just solve for x
the actually complicated part of the problem is applying bisection theorems to get the centre and diamater
It's better if you can get the answers on your own with guidance without just being told them
@cedar tendon If a circle is 360 degrees and a protractor is half that, how much degrees is a protractor?
Well what is one half as a fraction?
@cedar tendon 360/x = 10
just solve for x
how do i solve for x?
Did you study algebra?
he doesn't understand math that well that probably reason why he not getting it so imma just give him some hints
@cedar tendon you can switch 10 with x than divide
how do i like switch them?
switch means changing it places
like lets say you want to buy a candy corn by giant
right
Yes
than you want to switch it up with an even better candy like jolly rancher
that what switch means do you understand?
Yes
We all believe in you we will help you in your problems in math
no mather what
Alright
I know how math is hard for some people
so just switch the 10 with x than divide it than tell me what you got?
Haha
now write what you did to get 36 for 1@cedar tendon
ok for 2 you really need to think about it
lemme ask you this @cedar tendon does the circle changes?
you can applied this what we did for 1 into 2 and it stays the same because the circle doesn't change
I'm gonna go to sleep now, good luck !!
IM FINISH
technically the same approach can be used, but think about practicality
now
@sinful anvil i saved the day
Hello, I'm stuck on a homework assignment
I am given, theres a point A on the line y = 7 on it's first quarter.
point A is the same distance from the Y axis as its distance from the point (2,3).
I need to find the point A coordinates and the distance between A and the Y axis.
This is what I wrote so far, not sure even if this is correct:
You could always just take the line perpendicular CD at the midpoint of CD and find its intersection with y=7
To get A
you mean find the midpoint of CD?
I can only find the x value of that midpoint as well, cant I?
I'm having troubles with that line definition, y = 7, the teacher explained that if we wish to check if a point is on a line, we need to use our x and y values and place them in the equation, but this equation only has y, and any y!=7 would be false
consider drawing a better diagram
if I have a rectangle with the sides 10cm and 15cm, how can I make a function out of this? I need to derivative this function to find a maximum point, but how do I make a function if I only have 10cm and 15cm? Do I make it so x = 10cm and y = 15cm?
I should make a function for the volume of the rectangle*
in use
also if you're supposed to use calculus, use an appropriate channel
sorry new to this discord, I'll ask it there
like this?
I only know one point tho
oh, is y = 7 = (0,7)?
oh ok
and A is a point on that line
where do I put A? or it doesnt matter?
I don't know if its in the positive or negative side of X
it mentions its somewhere in the first quarter/quadrant
i.e. where both x and y are positive
but isn't that line infinite? across the X axis
ohh I see, first quadrant means of the plane and not the line
that indicates that the x-coordinate of A is positive,
and you are supposed to use appropriate methods to determine its value
label the axes and the y-value of the line
let the coordinates of A be something like
(x_A, y_A) and apply distance formulae
i'm having some difficulty telling your 7s and ys apart
theres no 7's in the last picture
only y's
there's no 7's at all when I come to think of it
using y-y like that is a bit dodgy
well that's the y of the y axis and y of the point A
as well as the use of x and y themselves
this is what I got so far with the new plane
