all the angles are given how do u find the angle that has a question mark beside it?
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The answer is
It's a beautiful problem.
Of course, don't even think use trig.
how did u get that?
Klicken sie Heir.
Sorry, Krizalid I used trigonometry to solve it. I am not as good in Classical Geometry as you are.
Here's a picture
Take a point such that
You need to prove two facts: are collinear.Finally, you'll see that quadrilateral is cyclic, and the problem is done.
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