1

Set 5: Trigonometry (Beginner)

Explanation

Answer: B

PROBLEM

Intriguingly, if angle A = 15 degrees, what is its complement?

If angle A = 15 degrees, what is its complement?

A.

15 degrees

B.

75 degrees

✓ Correct
C.

165 degrees

D.

105 degrees

Detailed Explanation

[Variation 2] Choice B is the best answer. Complement = 90 - 15 = 75 degrees

Why others are wrong:
A: 15 degrees is incorrect because it does not satisfy the equation.
C: 165 degrees is incorrect because it does not satisfy the equation.
D: 105 degrees is incorrect because it does not satisfy the equation.