Chords of Circle with Pythagorean Theorem applied to Kite

Chords of Circle with Pythagorean Theorem applied to Kite
1) What shapes do you see inside of the kite?[br]2) How can you find [br]-2a. the green lengths?[br]-2b. CD?

Information: Chords of Circle with Pythagorean Theorem applied to Kite