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122_G4U5_WB˜ ˙—» ¿º 2011.3.30 2:56 PM ˘ ` 15 PDF_In 2540DPI 150LPI T
122-P1-1
The Sum and Difference of Angles
1. Find the measure of the marked angle in each rectangle.
Example a.
ABC 90 BCA
ABD 90 42 48 c.
b.
CAD ACB
d. e.
ABD ABD
122-P1-1
The Sum and Difference of Angles
1. Find the measure of the marked angle in each rectangle.
Example a.
ABC 90 BCA
ABD 90 42 48 c.
b.
CAD ACB
d. e.
ABD ABD
