Question

The circumference of a circular pool is 7.8 meters. Find its diameter, rounded to one decimal place.

Answer 1

Given:

a.) The circumference of a circular pool is 7.8 meters.

Recall: The formula for getting the circumference of a circle.

$\text{ Circumference = }\pi d$

Where,

d = diameter of the circle

We get,

$\text{ Circumference = }\pi d$$\text{ 7.8 m = }\pi d$$\text{ }\frac{\text{7.8}}{\pi}\text{ m = }d$$\text{ }\frac{\text{7.8}}{3.14}\text{ m = }d$$\text{ }2.4840764331\text{ m = }d\text{ }$$\text{ }2.5\text{ m }\approx\text{ }d\text{ }$

Therefore, the diameter of the circular pool is 2.5 m