Proposed Geometry Problem 42: Angle, Triangle. High School, College, SAT Prep. Online math tutor

Problem 42. Angles, Triangle. Level: High School, SAT Prep, College

In the figure, AB = BC = CD, and the measure of angle C is double the measure of angle A. Prove that x = 120° -2mÐ A.
See also Problem 4. Post your comments or solutions in the blog.

Last updated: June 24, 2008