#angles problem

88 messages · Page 1 of 1 (latest)

sacred frigate
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can anyone do this?

IMG_2249.png
lost girderBOT
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mortal stone
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do you notice a triangle with 2 angles?

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I see 3 of them

pearl notch
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Guy try to find the other angles of the triangles

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yeah it’s pretty difficult

frigid warren
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Some of these angle rules may help:

  • Angles in a triangle add to 180°
  • Angles around a point add to 360°
  • Opposite angles are the same around a point

I would start by working out the missing angle in the triangle with angles 36° and 48°

glossy vigil
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btw people you cannot solve this with raw angle chasing lmao

sullen breach
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The sum of all internal angles of a triangle= 180°

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By only using this , you can find your solution

glossy vigil
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try the problem out its a lot harder

glossy vigil
sullen breach
glossy vigil
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you can do it with angle chasing 😭 ??

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damn i am silly silly

sullen breach
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If i able to create another relation between x and y

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He ques can be solved

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I m so close

glossy vigil
cosmic raft
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maybe try extending AD and BC to meet at a point E?

cosmic raft
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I got 30 degrees but uh I kinda used desmos to cheese the problem

glossy vigil
cosmic raft
# glossy vigil coordbash :D

nah even desmos couldn't come with an exact answer lol
(or I didn't put in the effort lol)
The answer desmos gave was equivalent to pi/6 up to 4 decimal points so yee

glossy vigil
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oh

cosmic raft
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I bashed law of sines to get some weird thing-

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let's hope it works

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(LOTTA ROOTS)

glossy vigil
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probably typed smthn wrong into calculator lol

cosmic raft
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oh lol

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ew wolfram alpha gave me 22.77 degrees approx

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that can't be the answer

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nah more hope in desmos

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but I'm gonna have to find a goddamn general solution of ax+by+c=0 ughhhhh

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nope my equations are in slope intercept form-

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UGHHHHHHH

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well

$x = \frac{b_2-b_1}{m_1-m_2}$

severe monolithBOT
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No Lifer#GTFOanemia

869908438250045460.png
glossy vigil
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haha

cosmic raft
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someth is working out ig-

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but my slopes are goddamn arctangents-

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I have to combine lagrange interpolation with arctangents...
Help.

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even the bot is pitying me-

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alr I got one point down now to exactly get the second point

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one thing I hate about coordinate geometry is the cursed algebra

glossy vigil
cosmic raft
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ok second point came out clean phew

glossy vigil
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probably assume AC=1 and then sine cos law bash everything else is better tbh

cosmic raft
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3 , 3arctan(4pi/15)

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@glossy vigil IT IS 30 DEGREES

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YESSSSSSSS

glossy vigil
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damn

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that deffo hints to an actual easy solution

cosmic raft
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Here's my shitty working lol

cosmic raft
woeful gulch
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is this already solved?

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found a way to solve it

cosmic raft
woeful gulch
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wait ima just repost image so i dont have to scroll up

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180-48-36= top angle of botton triangle

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Then that is equal to the angle above it

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ayo wait

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i think im tripping

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wait ima do this on paper

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nvm i cant do it sorry guys

cosmic raft
glossy vigil
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this is so funny

cosmic raft
topaz merlin
finite smelt
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Hmm...Well, this is as far as I got.

image.png
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Just in case, let me try an angle-accurate diagram in KOMPAS.

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Nah, the picture is mostly accurate.

image.png
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The angles there were a bit too large. This should be a bit better.

image.png
topaz merlin
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x is 30

zenith sluice
cosmic raft
topaz merlin
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also It is a question from japan when searched online

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i found more interesting questions

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like

cosmic raft
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oh-

topaz merlin