#### Answer

acute,
right,
obtuse,
straight,

#### Work Step by Step

For any angle x, whereby x is:
$\lt90$: x is Acute
$=90$: x is a right angle
$90\lt x \lt180$: x is obtuse
$=180$: x is a straight angle

Published by
Pearson

ISBN 10:
0321867327

ISBN 13:
978-0-32186-732-2

acute,
right,
obtuse,
straight,

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