Question

Find the radius of a circle with an area of 100^2

Answer 1

\[Area = \pi*r^{2}\]

Answer 2

all you need to do is re-arrange your equation and solve for r. this is easy you know what the area is and you know what pi is. so to find the radius you just isolate r

1. by dividing both sides by pi
2. taking the square root of both sides.

which gives you this formula below:

\[\sqrt{\frac{ Area }{ \pi }} = r \]

Answer 3

Ty very much for the help

Answer 4

So do you know what it is? :)

Answer 5

And does it says 100pi?

Answer 6

Double check the original problem. Does it say that the area of the circle is 100 pi, or does it say 100^2?