Question

angle b measures 60°. what is the measure of the angle that is complementary to angle b? 30° 60° 120° 180°

Explanation:

Step1: Recall complementary angle definition

Complementary angles sum to \(90^\circ\). Let the complementary angle to \(60^\circ\) be \(x\). So, \(x + 60^\circ=90^\circ\).

Step2: Solve for x

Subtract \(60^\circ\) from both sides: \(x = 90^\circ - 60^\circ = 30^\circ\).

Answer:

A. \(30^\circ\)