Set 5: Trigonometry (Beginner)

[Variation 3] **Choice C is the best answer.** Complement = 90 - 45 = 45 degrees

Explanation

Answer: C

PROBLEM

Researchers have observed that if angle A = 45 degrees, what is its complement?

If angle A = 45 degrees, what is its complement?

45 degrees

135 degrees

45 degrees

✓ Correct

135 degrees

Detailed Explanation

[Variation 3] Choice C is the best answer. Complement = 90 - 45 = 45 degrees

Why others are wrong:

A: 45 degrees is incorrect because it does not satisfy the equation.

B: 135 degrees is incorrect because it does not satisfy the equation.

D: 135 degrees is incorrect because it does not satisfy the equation.