Set 1: Trigonometry (Intermediate)

[Variation 3] **Choice A is the best answer.** tan = opposite/adjacent = 5/12

Explanation

Answer: A

PROBLEM

Researchers have observed that in a right triangle, the opposite side is 5, adjacent side is 12, and hypotenuse is 13. Find tan(angle).

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

5/12

✓ Correct

12/13

13/5

5/12

Detailed Explanation

[Variation 3] Choice A is the best answer. tan = opposite/adjacent = 5/12

Why others are wrong:

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

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

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