MathDB
Another Cyclic Pentagon

Source: HMMT 2008 Guts Problem 32

May 13, 2008
trigonometrygeometrycircumcirclesymmetry

Problem Statement

Cyclic pentagon ABCDE ABCDE has side lengths AB\equal{}BC\equal{}5, CD\equal{}DE\equal{}12, and AE \equal{} 14. Determine the radius of its circumcircle.