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Naya [18.7K]
3 years ago
15

Angle A and angle B are complementary angles. If measure angle A= (2x – 4)º and measure angle

Mathematics
1 answer:
Rashid [163]3 years ago
8 0

Answer:

Angle A = 18°

Step-by-step explanation:

since the angles are complementary, they add up to 90°

(2x-4) + (5x+17) = 90

add like terms

7x-4+17=90

simplify left side

7x+13=90

subtract 13 from both sides

7x=77

divide both sides by 7

x=11

plug in x to find the measure of angle A

2(11) - 4

multiply 2*11 first

22-4

simplify

18

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