Set 3: Trigonometry (Beginner)

[Variation 1] **Choice D is the best answer.** Complement = 90 - 15 = 75 degrees

Explanation

Answer: D

PROBLEM

Recent studies show that if angle A = 15 degrees, what is its complement?

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

105 degrees

165 degrees

15 degrees

75 degrees

✓ Correct

Detailed Explanation

[Variation 1] Choice D is the best answer. Complement = 90 - 15 = 75 degrees

Why others are wrong:

A: 105 degrees is incorrect because it does not satisfy the equation.

B: 165 degrees is incorrect because it does not satisfy the equation.

C: 15 degrees is incorrect because it does not satisfy the equation.