Set 4: Circles (Beginner)

[Variation 2] **Choice C is the best answer.** Area = pi times r squared = pi times 2 squared = 4pi

Explanation

Answer: C

PROBLEM

Intriguingly, a circle has radius 2. What is its area? (Express answer as a number times pi)

A circle has radius 2. What is its area? (Express answer as a number times pi)

4pi

6pi

4pi

✓ Correct

2pi

Detailed Explanation

[Variation 2] Choice C is the best answer. Area = pi times r squared = pi times 2 squared = 4pi

Why others are wrong:

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

B: 6pi is incorrect because it does not satisfy the equation.

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