Question

a circle has a diameter of 10 feet. What is the area of the circle? Leave answers in terms of π.

Answer 1

diameter = radius times 2 So if diameter is 10, then radius is 5.

the formula for the area of the circle is \(\color{blue}{ A~=~π~r~^2}\)
plug in your radius and solve

\(\color{blue}{ A~=~π~(5)~^2}\)

\(\color{blue}{ A~=~π~25}\)

\(\color{blue}{ A~=~25π}\)

Answer 2

There you go \(\color{black}{ :)}\)