Interior angle of a triangle

Geometry Level 3

In square A B C D ABCD , E E is the midpoint of A B AB . Find the measure of ∠ F C E \angle FCE to the nearest degree.


The answer is 27.

A Former Brilliant Member by A Former Brilliant Member

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1 solution

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FYI The way that you write up the solution is very confusing. You seem to be asserting that "Angle FCE = angle BCE" in the 5th line. It took me a while to understand that - Oh, I had to continue reading the "proof:", to realize that you are now proving that "Angle FCE = angle BCE".

Be explicit about what you are doing, and use signposts to guide your reader. For example, it would be clearer if you say "Claim: angle FCE = angle BCE. hence the angle is 27. Proof of claim ...".

Calvin Lin Staff - 4 years, 1 month ago

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