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

Mar 13, 2018

Diameter: $\approx 8.212395064$ inches (or)

Diameter: $\approx 8.21$ 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 $/ \pi$

$\Rightarrow \frac{25.8}{3.14159} \approx 8.212395064$

Hence,

Diameter = $8.21$ inches in 3 significant figures.