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122_G4U5_WB˜ ˙—» ¿º 2011.3.30 2:56 PM ˘ ` 21 PDF_In 2540DPI 150LPI T

122-P4-1

1. Find the measure of the angle.

43 90
90 43

2. Find the measure of the angle shown by the arrow. Then, write how
many right angles are in each angle.

a. b. c.

90 180 360
right angle right angles 3 right angles right angles
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