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Find the measure of Angle A: M
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Find the measure of Angle A: M

Find the measure of Angle A: M-example-1
User Jiajianrong
by
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1 Answer

2 votes

Answer:

52°

Explanation:

12x - 2 = m∠A

6x + 11 = m∠B

m∠A + m∠B + 90° = 180°

12x - 2 + 6x + 11 + 90 = 180

+ 2 - 11 - 90

12x + 6x = 180 + 2 - 11 - 90

18x = 81

x = 4.5

m∠A = 12x - 2

12(4.5) - 2

54 - 2 = 52

m∠A = 52°

User Mjuarez
by
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