Question

how do you find the radius of a circle if you know the area?

Answer 1

pi times the radius squared euals area so do that backwards

Answer 2

use\[ A=\pi (r^{2})\]

Answer 3

so if area =1cm2 and pi = 3.14 then radius = .5?

Answer 4

\[R= \sqrt{A/\pi}\]

Answer 5

were you told to use 3.14 as pi?

Answer 6

yes

Answer 7

then you can use 3.14 otherwise pi is pi

Answer 8

okay, thanks

Answer 9

anytime :)

Answer 10

area = 50.24 pi= 3.14 so radius would equal 8?