∠A and ∠ B are complementary angles. If ∠A : ∠B = 8 : 7 , then find∠ A and ∠B
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Answer:
A = 48 B=42
Step-by-step explanation:
Since they are complementary angles, Sum of angle A and angle B = 90
A + B = 90
A : B = 8:7
A/B = 8/7
7A = 8B
Value of A = 8B/7
substitute value of A to first equation
8B/7 + B = 90
(8B + 7B) = 630
15B = 630
B = 630/15
B = 42 degrees
A = 90 - 42 = 48 degrees
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