Question

A circle has a circumference of 7,850 units. What is the radius?

Answer 1

Circumference = 2*pi*radius

If the circumference is 7,850, we can create the following equation.

7,850 = 2*pi*radius

Divide both sides by 2pi

7,850 / 2pi = radius = 1249.36 units

Answer 2

Hello!

First of all we need to find the diameter. To do so we divide the circumference by pi.

7,850/3.14=2500

Since the radius is half the diameter, we just divide this number by 2.

2500/2=1250

The radius of this circle is 1250 unites.

I hope this helps!