Page 259 - NUMINO_WB_6B
P. 259
125_G6U27_WB˜ ˙—» ¿º 2011.6.23 3:44 PM ˘ ` 13

125-B7-1

1. Find m a m b.

a

b 55

2. Find the measure of the unknown angle.
60

110 a
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