Question

The radius of a semicircle is 3 inches. What is the semicircle's diameter?

Answer 1

6 inches

Explanation:

The diameter is twice the radius, or

d=2r

We know the radius is 3, so we can substitute that in

d=2*3

Multiply 2 and 3

d=6

So, the diameter is 6 inches

Answer 2

6 inches

Explanation:

Diameter = 2 * radius.

Because the radius is 3, the diameter is 6.