Answer
Right angle
Work Step by Step
A right angle is an angle of exactly $90^{\circ}$.
The symbol of a right angle is a box in the corner.
Prealgebra (7th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321955048
ISBN 13:
978-0-32195-504-3
Chapter 9 - Review - Page 686: 1
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