Question

Describe two ways to find M /_ 1 if m || n. What is the measure of angle 1?

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Answer 1

Method 1
Angle 3 = 65 degrees . . . . . . . . (corresponding angles are equal)
Angle 1 =180 - 65 = 115 degrees . . . . . . . .(angles on a paralel line are suplementary)

 Method 2
Angle 2 =180 - 65 = 115 degrees . . . . . . . .(angles on a paralel line are suplementary)
Angle 1 = 115 degrees . . . . . . . . (corresponding angles are equal)

The measure of angle 1 is 115 degrees.