Page 140 - NUMINO_WB_4A
P. 140
123_G4U6_WB˜ ˙—» ¿º 2011.3.30 5:31 PM ˘ ` 14 PDF_In 2540DPI 300LPI T
123-B7-2
3. Find an acute angle, right angle, and obtuse angle.
A
B
D
C
Acute triangles:
Right triangles:
Obtuse triangles:
123-B7-2
3. Find an acute angle, right angle, and obtuse angle.
A
B
D
C
Acute triangles:
Right triangles:
Obtuse triangles:
