Question

Blake drew a circle with a circumference of 37.68 cm. What is the diameter of that circle?

Answer 1

Explanation:

Answer 2

Given Information:

Circumference of circle = C = 37.68 cm

Required Information:

Diameter of circle = D = ?

Answer:

Diameter of circle =
`D = 11.99`
`cm`

Explanation:

We know that circumference of a circle is given by

`C=2\pi r`

Where r is the radius of circle.

The relation between radius and diameter is given by

`r = (D)/(2)`

Substitute r into above equation of circumference.

`C=2\pi ((D)/(2) )`

`C=\pi D`

`D = (C)/(\pi)`

`D = (37.68)/(\pi)`

`D = 11.99`
`cm`

Therefore, the diameter of the circle is 11.99 cm