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123_G4U6_WB˜ ˙—» ¿º 2011.3.30 5:31 PM ˘ ` 11 PDF_In 2540DPI 300LPI T

123-B6-1

1. Draw circles to show acute angles and stars to show obtuse angles in
each shape.
a. b. c.

2. As shown below, lines are drawn inside a rectangle to form different
triangles. Find each type of triangle and write the letters.
B DE G
A CF
a. Acute triangles :
b. Right triangles :
c. Obtuse triangles :
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