Question

Line a is parallel to line b. If the

measure of 47 is 114°, what is the
measure of <1?
21
34
65
114 78

Answer 1

66 degrees

Explanation:

By the Corresponding Angles Theorem, Angle 7 is equal to Angle 2. This means that the measure of Angle 2 is 114.

Since Angle 1 is supplementary to Angle 2:

`114 + x = 180\\x = 66`

Angle 1 is 66 degrees