Answer
a. $30^{\circ}$
b. $120^{\circ}$
Work Step by Step
a. 90$^{\circ}$ - $60^{\circ}$= $30^{\circ}$
complementary angles have a sum of $90^{\circ}$
b. $180^{\circ}$- $60^{\circ}$ = $120^{\circ}$ supplementary angles have a sum of $180^{\circ}$
Trigonometry (11th Edition) Clone
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
978-0-13-421743-7
ISBN 13:
978-0-13421-743-7
Chapter 1 - Trigonometric Functions - Section 1.1 Angles - 1.1 Exercises - Page 7: 12
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