Geometry: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281159
ISBN 13: 978-0-13328-115-6

Chapter 2 - Reasoning and Proof - Chapter Test - Page 133: 16



Work Step by Step

Let $\angle A$ be the angle. Write and solve an equation. $m\angle A+(m\angle A-52)=90\longrightarrow$ definition of complement $2m\angle A - 52=90\longrightarrow$ combine like terms $2m\angle A=142\longrightarrow$ addition property of equality $m\angle A=71\longrightarrow$ division property of equaliity
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.