If a circle has a diameter of 16 feet which expression gives its area in square feet

Question

asked Jun 26, 2020 5.2k views

1 Answer

Simonwh · Answer 1 · 2020-06-30T17:10:11+0000

Answer:
$(8)^2\pi\ feet^2$

or

$64\pi \ feet ^2$

Explanation:

We are given that the diameter of a circle = 16 feet

Then the radius of the circle =
$r=(d)/(2)=(16)/(2)=\ 8 feet$

Also, the area of a circle is given by :_

$A=\pi r^2$ , where r is radius of the circle .

For r = 8 feet

The area of the circle =
$\pi (8)^2=\pi (64)=64\pi \ feet ^2$

Hence, the expression that gives its area in square feet =

$(8)^2\pi \ feet^2$

or

$64\pi \ feet ^2$