In the diagram below, B is the image of A after a counterclockwise rotation of 30 degrees about C. Determine the degree measure of \angle A.

Chapter 3.2: Angles – Pre-Calculus

Art of Problem Solving

Angle - Wikipedia

A geometric proof of the impossibility of angle trisection by

Measure the angle shown in the image relative to the positive x-axis. find_557045594402050840123.png

Solved In the diagram below, B is the image of A after a

Solved: Free Response 1: In the diagram below, point B is the

A vector vec A makes on angle 30^0 with the y-axis in

Unit Circle Trigonometry