How smart is /b?

[spoiler]I'm an engineer and got stuck on the circle angles[/spoiler]

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not exact because I didn't want to rememeber fractions, but it's real close

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A bunch of scholars you are. I’m impressed, good job gentlemen.

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also you could get the exact result by only computing all the sines at the end but that would've been a lot to write so I calculated them after each step and rounded to 4 digits.

I got this. Haven't done this in a decade so

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I didn't round in the following post except for the result:
Btw: x=28.496

use the internets
calculator.net/triangle-calculator.html

wrong argumentation, see . if you change x and y then the top left edge would move and the angles in the left triangle could not be 50, 110 and 20 anymore.