Page 147 - NUMINO_WB_4A
P. 147
123_G4U6_WB˜ ˙—» ¿º 2011.3.30 5:31 PM ˘ ` 21 PDF_In 2540DPI 300LPI T
123-P4-1
1. Write the number of acute angles, right angles, and obtuse angles.
Acute angles:
Right angles:
Obtuse angles:
2. Draw 3 lines inside the triangle to make 1 acute triangle, 2 obtuse
triangles, and 2 right angles.
123-P4-1
1. Write the number of acute angles, right angles, and obtuse angles.
Acute angles:
Right angles:
Obtuse angles:
2. Draw 3 lines inside the triangle to make 1 acute triangle, 2 obtuse
triangles, and 2 right angles.
