Question

Find the measure for ∠LQR.

A) 126 °

B) 129 °

C) 131 °

D) 133 °

Answer 1

125

Explanation:

Answer 2

A) 126°

Explanation:

to find b:

90 - 12b = - 3b + 63

- 12b + 3b = 63 - 90

- 9b = - 27

- b = - 27/9

-b = -3

b = 3

to find the measure of MQR:

-3*3 + 63 = 54°

to find the measure of LQR:

180 - 54 = 126°