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saw5 [17]
2 years ago
13

Find the measure of angle A. A 9x+6 4x + 6 m/A=

Mathematics
1 answer:
Likurg_2 [28]2 years ago
6 0

Answer:

angle A=30°

Step-by-step explanation:

9x + 6 + 4x + 6 + 90 = 180 \\ 13x + 102 = 180 \\ 13x = 180 - 102 \\ 13x =  78 \\  \frac{13x}{ 13} =  \frac{ 78}{13} \\ x = 6 \\ 4x + 6 = a \\ 4(6) + 6 = a \\ 24 + 6 = a \\ 30 = a

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