Question

The radius of circle L is 22 cm.

What is the length of its diameter?

A. 88 cm
B. 44 cm
C. 22 cm
D. 11 cm

Answer 1

diameter = 2*(radius)
The radius is half of the diameter, so if you were given the radius and need to find the diameter, multiply the radius by two. If you were given the diameter and need to find the radius, divide the dimaeter by two

Answer 2

Option B
`44\ cm`

Explanation:

we know that

The radius of the circle is half the diameter

Let

r-----> the radius of the circle

D----> the diameter of the circle

we have

`r=22\ cm`

`r=(D)/(2)`

Solve for the diameter

`D=2r`

substitute the value of r

`D=2(22)=44\ cm`