Question

Which circles have a circumference of 24π units?

Choose all answers that are correct.

A.
a circle with a radius of 6 units

B.
a circle with a radius of 12 units

C.
a circle with a diameter of 12 units

D.
a circle with a diameter of 24 units

Answer 1

The circumference formula is \[2\Pi r\] But since there is pi in the answer, just multiply like this \[2r\] R is the radius. Plug in all the radii given and see if you get 24.

Answer 2

what. i have no clue what you just said. o-o

Answer 3

\(2\pi r\)*

Answer 4

nope nah i dont know. I cant do math

Answer 5

\[C=2\pi r\quad\Longrightarrow\quad\dfrac{C}{2\pi}=r\]

So you just divide circumference by \(2\pi\).

What do you get?

Answer 6

I dont know . e.e i cant do this shlit

Answer 7

You can...

Circumference is \(24\pi\), so you have

\(\dfrac{24\pi}{2\pi}\)

What to do from here?

Answer 8

Do numerator and denominator have something in common that we can cancel out?