Question

Find the measure for LQR
A) 127
B) 131
c) 135
D) 139

Answer 1

B

Explanation:

Since XQM and LQR are vertical angles, they are congruent. Solving for a:

`- 4a + 139 = 4a + 123`

`8a = 16`

`a = 2`

Substitute 2 for a in 4a + 123:

`4(2) + 123 = 8 + 123 = 131`