Question

the lopez family is building a semi circle patio for their outdoor grill to sit on. they know that they want the concrete to have a radius of 4 feet. what is the area of the patio rounded to the nearest hundredth

Answer 1

Formula for the Area of a Circle = pi x r^2

First, find the area of the whole circle.

A(whole circle) = pi x 4^2

A(whole circle) = 16pi

Next, find the area of just half of the circle, because that is what we are asked to find in the problem.

A(half circle) = 8pi = 25.13 ft^2

Answer: 25.13 ft^2

Hope this helps!