Question

find the radius of a circle with an area of 38ft squared

Answer 1

\[A=\pi*r^2\]

Answer 2

i know that is the formula but i am not sure how to solve it

Answer 3

Ok so after plugging in values you get. \[38=\pi*r^2\] so then divide by \[\pi\] and take the square root of that number to get r.

Answer 4

i got a weird number when i divided 38 by pie
12.09577567

Answer 5

That weird number is correct.

Answer 6

Now you just need to take the square root. :)

Answer 7

i got 3.477898168 is i right?

Answer 8

Yes. You can always check yourself by plugging your answer into the equation for r.

Answer 9

thank you very much i got what i needed

Answer 10

You're welcome. :)