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Mathematics 14 Online
OpenStudy (anonymous):

1)What is the exact circumference of a circle with a radius of 15 cm? 2)What is the exact circumference of a circle with a radius of 16?

OpenStudy (anonymous):

pleasee help me i really need to pass this!

OpenStudy (anonymous):

the first one is 94.2cm

OpenStudy (anonymous):

thats not an answer A 60 B 30 C 15 D 10

OpenStudy (anonymous):

oh sorry

OpenStudy (anonymous):

its okay

OpenStudy (anonymous):

@zendaya-replay-guy this guy might help me

OpenStudy (anonymous):

yo

jhonyy9 (jhonyy9):

so do you know what is formula of circumference of a circle ?

OpenStudy (anonymous):

I got 47.1?

OpenStudy (anonymous):

no thats not an answer

OpenStudy (anonymous):

yes i just need to pass this so i can go to the doctor lol

OpenStudy (anonymous):

Well, I have done the problem a couple of a times. All I keep getting is 47.1 Somebody else needs to try.

OpenStudy (anonymous):

hey @alanaleigh13 the answer is 60

jhonyy9 (jhonyy9):

so C = 2*pi*r and pi = 3,14 than now you can calculi it easy yes ?

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

That's 94.2

OpenStudy (anonymous):

what about the second one @zendaya-replay-guy

OpenStudy (anonymous):

i thought it was 64 but thats not an answer

OpenStudy (anonymous):

is it?

OpenStudy (anonymous):

hang on

OpenStudy (anonymous):

What is the exact circumference of a circle with a radius of 17 millimeters? 68π millimeters B. 8.5π millimeters C. 17π millimeters D. 34π millimeters

OpenStudy (anonymous):

forget the other two

OpenStudy (anonymous):

ok let me see....

OpenStudy (anonymous):

I'm thinking D.

OpenStudy (anonymous):

68 milimeters

OpenStudy (anonymous):

do u want me 2 show u how 2 do this or....

OpenStudy (anonymous):

@OrangeMaster that is not the answer

OpenStudy (anonymous):

do u now how 2 do this @OrangeMaster ?

OpenStudy (anonymous):

Yes: the formula for the Circumference is 2*3.14*r(radius)

OpenStudy (anonymous):

no that is not how u do it lol

OpenStudy (anonymous):

Then how do you do it?

OpenStudy (anonymous):

@alanaleigh13 do u need help?

OpenStudy (anonymous):

@OrangeMaster this is how

OpenStudy (anonymous):

yes i do

OpenStudy (anonymous):

if the radius is 15 then the diameter will be 30 because the radius is half of the diameter and if the diameter is half of a circle then the circle length is 60

OpenStudy (anonymous):

ok

OpenStudy (anonymous):

What is the approximate circumference of a circle with a diameter of 300 feet? Use 3.14 A.235.5 ft B.471 ft C.942 ft D.2826 ft

OpenStudy (anonymous):

C. is the answer 942

OpenStudy (anonymous):

What is the approximate circumference of a circle with a radius of 6.5 meters? Use π ≈ 3.14. A. 13 meters B. 20.4 meters C. 40.8 meters D. 132 meters

OpenStudy (anonymous):

C. 40.8

OpenStudy (anonymous):

C. 40.8

OpenStudy (anonymous):

The circumference is Diameter*pi.

OpenStudy (anonymous):

yes i know how 2 do this

OpenStudy (anonymous):

is this answer wrong

OpenStudy (anonymous):

I was telling alanaleigh13

OpenStudy (anonymous):

What is the approximate circumference of the circle? Use π ≈ 3.14. the circumference is 18 A. 36 feet B. 113 feet C. 56.5 feet D. 21.1 feet

OpenStudy (anonymous):

oh ok

OpenStudy (anonymous):

After everything that you have told her, she should know how to do these

OpenStudy (anonymous):

Let her answer it first

OpenStudy (anonymous):

Circumference/pi

OpenStudy (anonymous):

That will give you diameter ^^

OpenStudy (anonymous):

C. is the answer

OpenStudy (anonymous):

i think

OpenStudy (anonymous):

i just did it i got 56.52

OpenStudy (anonymous):

You should have let her post her answer before you posted yours

OpenStudy (anonymous):

yall be nice

OpenStudy (anonymous):

we weren't being mean

OpenStudy (anonymous):

yes that is correct but the answer is approx

OpenStudy (anonymous):

and i wasnt trying 2 be mean

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