1 answer:
Answer:
Step-by-step explanation:
<u>Angle XYZ is straight angle and as per angle addition postulate:</u>
- m∠XYZ = m∠XYQ + m∠QYZ
- 180 = 10a + 2 + 5a - 2
- 180 = 15a
- a = 180/15
- a = 12
m∠XYQ = 10*12 + 2 = 122°
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