this post was submitted on 08 Oct 2024
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[–] [email protected] 22 points 2 months ago (3 children)

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.

[–] [email protected] 0 points 2 months 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.