Posted by harsh on Tuesday, February 12, 2013 at 5:43am.
ABCD is a convex cyclic quadrilateral such that AB=AD and ∠BAD=90∘. E is the foot of the perpendicular from A to BC, and F is the foot of the perpendicular from A to DC. If AE+AF=16, what is the area of ABCD?

maths  ABCD, Friday, February 15, 2013 at 4:02am
This problem is at an website (brilliant . org). Please don't answer this since the problem is open. Answer this the next week.

maths  hehe, Friday, February 15, 2013 at 4:14pm
I know who are you. The point of Brilliant is to improve your skills, not cheat and gain illdeserved "prizes".
Be ashamed of yourself.

maths  anonymous, Wednesday, July 3, 2013 at 3:10pm
64

maths  stevesa, Thursday, July 4, 2013 at 8:24am
how 64 can you post process
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