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The value of x (sh.itjust.works)
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[-] TheOakTree@lemm.ee 14 points 3 weeks ago

You're making the assumption that the straight line consisting of the bottom edge of both triangles is made of supplementary angles. This is not defined due to the nature of the image not being to scale.

[-] NoMoreLurkingToo@startrek.website 22 points 3 weeks ago

Unless there are lines that are not straight in the image (which would make the calculation of x literally impossible), the third angle of the triangle in the left has to be 80°, making the angle to its right to be 100°, making the angle above it to be 45°, making the angle above it to be 135°. This is basic trigonometry.

[-] Windex007@lemmy.world 0 points 3 weeks ago

which would make the calculation of x literally impossible

Yes.

But that doesn't mean that line must be straight. It just means if it isn't, you can't derive x.

this post was submitted on 08 Oct 2024
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