Question

What is the circumference of the given circle?

Answer 1

Do i use C = 2(Pie)r to find the answer ?

Answer 2

yep! :) that or you can use the (pi)(d) formula, which is actually the same thing as the 2(pi)(r) formula. It'd just be easier because the picture gives you the diameter

Answer 3

if your diameter is 12.2,
circumference = 12.2 x (pi)
= 38. 33 cm

Answer 4

I hope that helps youuu!!!

Answer 5

It did thank you very much i was getting confused because it told me to do this diameter/2 plug it in for r and get my answer but that would make it 2 as much

Answer 6

twice *

Answer 7

Not it told me i thought i had to do it like that *

Answer 8

diameter is actually just the value of the radius times two!! :) for example. if your radius is 3 cm, your diameter would be 6cm.

hypothetically speaking d can be rewritten as d = 2r
if you plug in that value for d, you'll get 2(pi)r :)

Answer 9

hahaha oh gosh I know math's crazy

Answer 10

It is, it get's me frustrated... a lot.

Answer 11

To find a circumference of any circle, you must use the formula: \[\large Diameter \times \pi \] According to your picture, the diameter is 12.2. You want to multiply it by pi. This will give you 38.076. To the nearest hundredths, the answer would be 38.08.

Answer 12

Thank you both for clearing that up for me i have another type of question will you help ?

Answer 13

Sure.

Answer 14

Okay let me find it, it shouldn't take me longer than 2 minutes .

Answer 15

Okay.

Answer 16

Okay got it

Answer 17

Do i use the same thing or no ?

Answer 18

yep!! :) they give you the radius this time
you'd just use 2(pi)(r)

Answer 19

9 cm is the radius. 2 radius will give you diameter. So you just do 2r x pi to get the circumference.

Answer 20

When I mean 2 radius, I mean 2 of 9cm will equal the diameter.

Answer 21

Thank you, since i can't give you both a medal i became a fan instead (:

Answer 22

hahaha I honestly don't mind at all have fun with your math!!

Answer 23

I hope you have a wonderful day or night. :)

Answer 24

Both of you have a great day :D