Question

The circular lid of a jar has a diameter of 3 inches. Which of the following

expressions could be used to find the radius of the jar?

The circular lid of a jar has a diameter of 3 inches. Which of the following
expressions could be used to find the radius of the jar?

1. 2 • 3

2. 3π

3. 3 • 3

4. 3 ÷ 2

Answer 1

The radius is always half as long as the diameter. And the diameter is twice as long as the radius.

So the answer is:

4. 3 / 2