Set 3: Trigonometry (Beginner)

[Variation 1] **Choice D is the best answer.** 45 degrees is in Quadrant 1

Explanation

Answer: D

PROBLEM

Recent studies show that in which quadrant does an angle of 45 degrees lie?

In which quadrant does an angle of 45 degrees lie?

✓ Correct

Detailed Explanation

[Variation 1] Choice D is the best answer. 45 degrees is in Quadrant 1

Why others are wrong:

A: 2 is incorrect because it does not satisfy the equation.

B: 4 is incorrect because it does not satisfy the equation.

C: 3 is incorrect because it does not satisfy the equation.