#### Answer

Acute angle

#### Work Step by Step

An angle whose measure is less than $90^{\circ}$ is called an acute angle.

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Published by
Cengage

ISBN 10:
978-1-337-61408-5

ISBN 13:
978-1-33761-408-5

Acute angle

An angle whose measure is less than $90^{\circ}$ is called an acute angle.

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