Geometry: Common Core (15th Edition)

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

Chapter 2 - Reasoning and Proof - 2-3 Biconditionals and Definitions - Got It? - Page 100: 3


An angle is a straight angle if and only if it measures 180.

Work Step by Step

A measure of 180 is the definition of a straight angle, so the conditional and its converse are both true.
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