#### Answer

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.

Published by
Prentice Hall

ISBN 10:
0133281159

ISBN 13:
978-0-13328-115-6

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

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