What is the area of the circle with a circumference of 87.92 cm using 3.14 for symbol*

Question

asked Sep 1, 2021 73.6k views

1 Answer

Jstaab · Answer 1 · 2021-09-06T02:03:49+0000

Answer: 615.44 cm^2

Explanation:

Formula for the area of a circle is:
$A=\pi r^2$

We need to find the radius using our circumference formula and solving for r;

$Formula: C=2\pi r$

$r=(C)/(2\pi)$

$r=(87.92)/(2(3.14)) \\r=14cm$

Now that we've found the radius, replace it into the formula for the area.

$A=\pi r^2\\A= (3.14)(14)^2\\A=615.44cm^2$