The area of a circle is found using the formula A=\pi r^(2) , where r is the radius. If the area of a circle is 36π square feet,

Question

nikklg [1K]

3 years ago

13

The area of a circle is found using the formula A=\pi r^(2) , where r is the radius. If the area of a circle is 36π square feet,

what is the radius, in feet? A. 6 B. 6π C. 18 D. 9π

Mathematics

1 answer:

Studentka2010 [4] · Answer 1 · 2022-01-28T04:28:05+03:00

Studentka2010 [4]3 years ago

8 0

Answer:

Step-by-step explanation:

$A=\pi r^2\\Area = 36\pi\\r = ?\\36\pi = \pi r^2\\Divide \:both \:sides \:of\: the \:equation\: by\: \pi\\\frac{36\pi}{\pi} = \frac{\pi r^2}{\pi} \\r^2 = 36\\Find\: the\: square\: root\: of\: both\: sides\: \\\sqrt{r^2} =\sqrt{36} \\\\r = 6\: feet\\$