Question

What is the diameter of a circle if its circumference is 25.8 inches?

Answer 1

Diameter: `~~ 8.212395064` inches (or)

Diameter: `~~ 8.21` inches (3 significant figures)

Explanation:

Given:

The circumference of a circle = `25.8` inches.

We must find the diameter of the circle.

The formula to find the circumference of a circle when the diameter (D) is given:

Circumference`= pi D`

To find the diameter using circumference, we need to rearrange our formula as shown below:

Diameter (D) = Circumference `/pi`

`rArr 25.8/3.14159 ~~ 8.212395064`

Hence,

Diameter = `8.21` inches in 3 significant figures.

This is the final answer.