#### Answer

Acute angle

#### Work Step by Step

An acute angle is an angle smaller than $90^{\circ}$.
The angle is "sharper" than a right angle.

Published by
Pearson

ISBN 10:
0321955048

ISBN 13:
978-0-32195-504-3

Acute angle

An acute angle is an angle smaller than $90^{\circ}$.
The angle is "sharper" than a right angle.

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