Question

Help please

If the measure of angle 6 is 140 degrees and the measure of angle 7 is (x + 30) degrees, what value of x will guarantee n ∥ m?

Answer 1

x = 10

Explanation:

If n // m , then angle 6 and angle 7 are co interior angles and they are supplementary.

∠6 + ∠7 = 180

140 + x +30 = 180

x + 170 = 180

x = 180 - 170

x = 10