this post was submitted on 08 Oct 2024
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The value of x (sh.itjust.works)
submitted 1 month ago by sjmarf@sh.itjust.works to c/whitepeopletwitter@sh.itjust.works
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[–] Stomata@buddyverse.one 2 points 1 month ago (2 children)

I think 125

[–] Siethron@lemmy.world 24 points 1 month ago (2 children)

135, that's not a 90 degree angle in the problem. Just visually.

[–] SaharaMaleikuhm 7 points 1 month ago

Oh that's just a cheap trick. You are right, it's 80 degrees despite looking like 90 degrees.

[–] Stomata@buddyverse.one 1 points 1 month ago

You are right that is 80° so the value of x will be 135°

[–] LifeInMultipleChoice@lemmy.dbzer0.com 8 points 1 month ago* (last edited 1 month ago) (1 children)

Nah, the imagery tricks you. 180 degrees to a line. 180 degrees inside a triangle.

So you can gather the inside unlabeled angle on the triangle on the left is only 80 degrees: (180-[60+40])

So you then know it's 100 on the right side of that +35 leaves you with 45 degrees left for the top of the right one.

180-45=. 135 degrees

[–] tetris11@lemmy.ml 6 points 1 month ago

Also if you add up all visible angles you get 135, so I'm sold on that alone. No no no, I won't hear any rebuttals.