2 years ago

If A and B are complementary angles and A = (8x+20), B = (7x-5) find A

Mathematics

1 answer:

Dima020 [189]2 years ago

8 0

Answer:

m∠A = 60°

Step-by-step explanation:

Complementary Angles add up to 90°

Step 1: Set up equation

8x + 20 + 7x - 5 = 90

Step 2: Solve for <em>x</em>

15x + 15 = 90

15x = 75

x = 5

Step 3: Find m∠A

m∠A = 8x + 20

m∠A = 8(5) + 20

m∠A = 40 + 20

m∠A = 60°

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