2 answers:
Answer:
58°
Step-by-step explanation:
<MQR = <XQL (vertically opposite angles)
28 + 5b = 70 - 2b
28 - 70 = -2b - 5b
-42 = -7b
-42/-7 = b
6 = b
<MQR = 28 + 5b
= 28 + 5(6)
= 28 + 30
= 58°
Answer:
(A)
Step-by-step explanation:
<XQL and <MQR are vertical angles, which means that their measures are equal to each other.
I used the two equations to solve for b.
[see first picture]
When B got solved, I replaced b in MQR's equation with 6 (B = 6), and I got 58, which is option A.
[see second picture]
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