4

Set 3: Circles (Beginner)

Explanation

Answer: D

PROBLEM

A circle has diameter 6. What is its radius?

A circle has diameter 6. What is its radius?

A.

6

B.

5

C.

1

D.

3

✓ Correct

Detailed Explanation

Choice D is the best answer. Radius = Diameter / 2 = 6 / 2 = 3

Why others are wrong:
A: 6 is incorrect because it does not satisfy the equation.
B: 5 is incorrect because it does not satisfy the equation.
C: 1 is incorrect because it does not satisfy the equation.