if sinQ = 4/5 then find CosQ
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Answer:
The answer is 3/5
Step-by-step explanation:
- sinQ = 4/5 = p/h
- p= perpendicular = 4
- h = hypotenuse = 5
- (h) ²= (p) ²+ (b)²
- (5)² = (4)² + (b)²
- 25 = 16 + (b)²
- (b)² = 25-16
- (b)² = 9
- b = √9
- b = 3
- cosQ = b/h
- cosQ = 3/5
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