Question

The image shows parallel lines cut by a transversal. The expressions represent unknown angle measurements. What is the value of x?

A)5 B)7 C)9 D)11

Answer 1

Explanation:

the answer is B cause a Supplementary angles sum is 180°. So, set the angles equal to 180° and solve for x.

11x + 8 + 12x + 11 = 180

23x + 19 = 180

23x = 161

x = 7

Answer 2

Answer: C

because

it is