Prealgebra (7th Edition)

Published by Pearson
ISBN 10: 0321955048
ISBN 13: 978-0-32195-504-3

Chapter 9 - Review: 6

Answer

The supplement is $75^{\circ}$

Work Step by Step

Two angles are supplementary if they add up to $180^{\circ}$. This means we have to find $\angle A$, where: $105^{\circ}+\angle A=180^{\circ}$ $\angle A=180^{\circ}-105^{\circ}$ $\angle A=75^{\circ}$
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