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Answer: ASet 1: Trigonometry (Beginner)
Explanation
PROBLEM
In a right triangle, the opposite side is 3, adjacent side is 4, and hypotenuse is 5. Find sin(angle).
In a right triangle, the opposite side is 3, adjacent side is 4, and hypotenuse is 5. Find sin(angle).
A.✓ Correct
3/5
B.
4/5
C.
3/4
D.
5/3
Detailed Explanation
Choice A is the best answer. sin = opposite/hypotenuse = 3/5
Why others are wrong:
B: 4/5 is incorrect because it does not satisfy the equation.
C: 3/4 is incorrect because it does not satisfy the equation.
D: 5/3 is incorrect because it does not satisfy the equation.