Question

2) A circle has a diameter of 10 feet. What is the area of the circle, in square feet?

Answer 1

A = 78.5
`ft^(2)`

Explanation:

A = π
`r^(2)`

diameter = 10

radius is half of 10 = 5

A = 3.14 x
`5^(2)`

A = 3.14 x 25

A = 78.5
`ft^(2)`

Answer 2

Area = 78.5 square feet

Explanation:

Formula for area of a circle: A = pi r^2 or area = pi times radius squared

So the diameter = 10 feet

And radius is half of the diameter so radius = 5 feet

A = pi x 5 squared

A = pi x 25

A = 78.5 square feet