HELP!! MULTIPLE CHOICE: FAN & MEDAL-What is the circumference of the given circle in terms of pi?

Question

HELP!!  MULTIPLE CHOICE:  FAN & MEDAL-What is the circumference of the given circle in terms of pi?

angeleyes108 · Answer

|dw:1429299847867:dw|

angeleyes108 · Answer

My choices are: 14$$14\pi / 28\pi / 42\pi / 196\pi $$

anonymous · Answer

Do you know the equation of circle's circumference ?
It's 2πr where r is the radius of the circle 

Let me know if you got it :)

angeleyes108 · Answer

Doing that equation I don't get the answer it's looking for.  I listed the choices above.  It's in terms of pi.

anonymous · Answer

What is you given raduis ?

angeleyes108 · Answer

14 in.

anonymous · Answer

Then plugging it into equation what you will get ?

angeleyes108 · Answer

87.92 and that's not one of my choices.

anonymous · Answer

No you want it in terms of pi then you don't type the π onto your calculator :)

anonymous · Answer

You got it ? :)

angeleyes108 · Answer

I'm confused....

angeleyes108 · Answer

that doesn't make sense...

johnweldon1993 · Answer

So the equation is

$$\large C = 2 \pi r$$

So we just need to deal with the 'r' and the 2

The radius given is 14 inches...so we have

$$\large C = 2 \pi \times 14$$
or
$$\large 28 \pi$$

It is in terms of pi

angeleyes108 · Answer

Oh thank you so much!!