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Mathematics 8 Online
OpenStudy (anonymous):

What is the circumference of the given circle in terms of Pi.

OpenStudy (anonymous):

Mehek (mehek14):

Do you know how to find the circumference?

OpenStudy (shamim):

Circumference=2*pi*r

OpenStudy (anonymous):

I believe Pi = 14 correct??

Mehek (mehek14):

pi = 3.14

Mehek (mehek14):

and it goes on but you can use just 3.14

OpenStudy (anonymous):

oh yeah lol forgot the 3

OpenStudy (triciaal):

the circumference in terms of Pi means leave pi as pi

OpenStudy (anonymous):

yeah let me get a pen lol

Mehek (mehek14):

you don't need a pen to find the radius...it's already there

OpenStudy (triciaal):

Circumference = 2*pi* r r = 15 C = 2*pi* 15 C = 30 pi

OpenStudy (anonymous):

i got 94.2 but i dont think thats correct

Mehek (mehek14):

94.2 for the radius??

OpenStudy (anonymous):

no, i got 94.2 as circumference

Mehek (mehek14):

you have to leave pi by itself

OpenStudy (anonymous):

for the radius I got 30

OpenStudy (triciaal):

@shamim C = 2 Pi r

Mehek (mehek14):

30 would be the diameter

Mehek (mehek14):

radius = \(\dfrac{diameter}{2}\)

OpenStudy (anonymous):

15

OpenStudy (anonymous):

is the radius

OpenStudy (triciaal):

@LetsLearn2000 please read the original question again

Mehek (mehek14):

ok so plug in 15 \(2π15\)

Mehek (mehek14):

now all you have to do is multiply \(2*15\) Don't do anything to pi

OpenStudy (anonymous):

30

Mehek (mehek14):

ok so you have \(30π\)

Mehek (mehek14):

That should be your final answer since you keep pi as it is

OpenStudy (anonymous):

Ok so i got all the way up to here. I did 30 x Pi and got 94.2

OpenStudy (anonymous):

oh ok i see now.

OpenStudy (anonymous):

thanks !

Mehek (mehek14):

your question states What is the circumference of the given circle in terms of Pi. meaning just leave pi with the answer

Mehek (mehek14):

yw \(\ddot\smile\)

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