Question

The radius of a circular park is 114 yd. To the nearest yard, what is the circumference of the park?

Answer 1

What will be the diameter if you have the radius?

Answer 2

I don't know honestly.

Answer 3

diameter = 2r

Answer 4

pi = circumference/ diameter

Answer 5

so 2r = 114yd

Answer 6

2*114

Answer 7

228!

Answer 8

Yes now you have the diameter, can you figure out the circumference?

Answer 9

3.14?

Answer 10

That's pi

Answer 11

360?

Answer 12

Pi = Circumference / Diameter

Answer 13

Use it

Answer 14

I thought the value of a circumference equals 3.14 O__o
I don't know what to plug in

Answer 15

No, ok listen

Answer 16

pi is the ratio of circumference / diameter ok?

Answer 17

okay!

Answer 18

So if pi = c/d

Answer 19

and you're looking for c, I gave you that ratio and that will tell you the answer, I'll give you another hint, ALGEBRA

Answer 20

you have D now since d = 2*r

Answer 21

I got 358?

Answer 22

no

Answer 23

How did you get that?

Answer 24

pi*d = C

Answer 25

wait hold on..I made a mistake

Answer 26

Just plug in the numbers now.

Answer 27

Tell me what you get.

Answer 28

Try using this formula:
circumference = 2 * PI * radius
circumference = 2 * PI * 114 yards

Answer 29

716?

Answer 30

:)
You got it

Answer 31

thanks batman ;) & wolf1728!

Answer 32

Very good ChinaGurl

Answer 33

Remember this though, Pi is the ratio of circumference / diameter