Question

The circumference of a circle is 50.24 centimeters. How do you find the area of the circle?

Answer 1

From the circumference you can determine the radius. Once you have the radius, you calculate the area as `pir^2`
The answer will be `A=201cm^2`

Explanation:

If the circumference is 50.24, the radius must be `r=50.24/(2pi)`, because the circumference is always equal to `2pir`.

So, `r=50.24/(2pi) = 8.0 cm`

Since the area is `A=pir^2`, we obtain `A=pi(8^2)= 201cm^2`