Question

Which circles have an area of 16 Pi in2?

Choose all answers that are correct.

A.
a circle with a radius of 2 in.

B.
a circle with a radius of 4 in.

C.
a circle with a diameter of 8 in.

D.
a circle with a diameter of 16 in.

Answer 1

formula is \(\pi r^2\) so if the radius is \(2\) it would be \(\pi \times 2^2=4\pi\) so not that one !

Answer 2

if the radius is \(4\) then it would be \(\pi\times 4^2=16\pi\)
that is one of the right answers

Answer 3

mhmm... is the other C?

Answer 4

Area = pi(r)^2

Answer 5

...

Answer 6

Find the square root of 16.

Answer 7

That will be your radius.

Answer 8

yah, 4

Answer 9

So it's B.

Answer 10

Great job!

Answer 11

its more dan 1 answer!

Answer 12

I am not sure about the others :\

Answer 13

i tink the other is C, its only 2!

Answer 14

Yeah I think you're correct

Answer 15

Half of 8 (diameter) is 4 (radius)

Answer 16

The problem has only one correct answer. It doesn't say there is more than one correct answer. Don't read more into it, just select the correct answer.

Answer 17

Choose All Answers That Are Correct!
in my math, tht always means more than 1 answer!

Answer 18

@StudyGurl14
2 sum up the chat, i tink its B & C

Answer 19

correct^

Answer 20

O, YAY!

Answer 21

4 more!

Answer 22

Sorry, you are correct there are two correct answers and it is as you say B & C. I don't know where my head was for my post!