Angles A, B, and C are the angles in a triangle. Angle B is 2 times as big as angle A, and angle C is 48° more than angle A. Find the measure of angle A in degrees.
A) 81°
B) 10.5°
C) 33°
D) 66°

Question

Quizplus · Accepted Answer

The sum of angles in a triangle is 180°. Let angle A = x. Then, angle B = 2x and angle C = x + 48°. The equation is x + 2x + x + 48 = 180. Solving for x gives x = 33°.

Angles A, B, and C Are the Angles in a Triangle