Question

Cupertino Middle School is painting a circle on their playground with a radius of 4 feet. What will be the total area of the circle, in square feet? Use n = 3.14, and round your answer to the nearest hundredth.

Answer 1

Solution:

The area A of a circle with radius r is given by the following formula:

$A\text{ = }\pi r^2$

in this case, r = 4, so the area of the given circle would be:

$A\text{ = }\pi r^2=\text{ }\pi(4)^2=50.24$

so that, the correct answer is:

$50.24$