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125_G6U27_WB˜ ˙—» ¿º 2011.6.23 3:44 PM ˘ ` 17
125-P2-1
Use of the Angles of a Quadrilateral
Find the unknown angle.
A
52
E
a F 63
90 90
BD C
Step 1. Find the angle CDE.
Step 2. Find angle BDF.
Step 3. Find angle a from quadrilateral ABDF.
125-P2-1
Use of the Angles of a Quadrilateral
Find the unknown angle.
A
52
E
a F 63
90 90
BD C
Step 1. Find the angle CDE.
Step 2. Find angle BDF.
Step 3. Find angle a from quadrilateral ABDF.
