Ha Ha Ha

Limits: 2s, 1.0 GB

Joker has finally created a master plan to defeat Batman. He has given Batman a geometric problem. Although, Batman is one of the world’s smartest men, he is afraid of geometric problems. But you are not, right? You can solve a geometric problem, can’t you? Here ABC is a circle with O as its center. BC is its diameter. So OB = OC. BCDE is a square so BC = CD = DE = EB and ∠EBC = ∠BCD = ∠CDE = ∠DEB = 90° or π/2 radians.

This is a companion discussion topic for the original entry at https://toph.co/p/ha-ha-ha