Question

Which circles have an area of 36pi ft2?



Choose all answers that are correct.









A.

a circle with a radius of 6 ft








B.

a circle with a diameter of 6 ft








C.

a circle with a radius of 12 ft








D.

a circle with a diameter of 12 ft

Answer 1

what do you think?

Answer 2

I think a and c

Answer 3

if you don't know where to start, can you tell me how to calculate the area of a circle?

Answer 4

Here are 2 formulae which may help:
\[\pi r^2 = Area\]\[2r = d\]

Answer 5

You are 1/2 correct

Answer 6

ok lwt me do some math really quick

Answer 7

So why do you think A? Why do you think c?

Answer 8

ok so I did math is it a and d

Answer 9

That is correct

Answer 10

Good job finding your error :)

Answer 11

thankyou