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Use the figure to find the measures of the numbered angles

Use the figure to find the measures of the numbered angles-example-1
User Silke
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Since a and b are parallel, we know the following:
75° = Angle 1 = Angle 4 = Angle 6
180° - 75° = 105° = Angle 2 = Angle 3 = Angle 5 = Angle 7
User Shaunda
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