Set 5: Trigonometry (Intermediate)

[Variation 2] **Choice C is the best answer.** sin = opposite/hypotenuse = 5/13

Explanation

Answer: C

PROBLEM

Intriguingly, in a right triangle, the opposite side is 5, adjacent side is 12, and hypotenuse is 13. Find sin(angle).

In a right triangle, the opposite side is 5, adjacent side is 12, and hypotenuse is 13. Find sin(angle).

12/13

13/5

5/13

✓ Correct

5/12

Detailed Explanation

[Variation 2] Choice C is the best answer. sin = opposite/hypotenuse = 5/13

Why others are wrong:

A: 12/13 is incorrect because it does not satisfy the equation.

B: 13/5 is incorrect because it does not satisfy the equation.

D: 5/12 is incorrect because it does not satisfy the equation.