Question

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

Answer 1

Answer:

B

Step-by-step 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:

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