Question

What is the approximate circumference of a circle with a diameter of inches?
Use

A.
628 inches

B.
1256 inches

C.
1884 inches

D.
2512 inches

Answer 1

I can't see the number for the diameter.

Answer 2

oh srry
give me a sec

Answer 3

400 inches and use 3.14 pi

Answer 4

@WalkingShark u there?

Answer 5

C=2πr

Answer 6

d=2r

Answer 7

C=πd=π·400≈1256.63706

Answer 8

1256 inches.
A way I use to find the circumference with a given diameter is to divide the diameter by 2. That's your radius. The equation in finding the circumference is 2pir

Answer 9

thank u walkingshark gave u medal :) ky

Answer 10

and i am writing down the work so i can remeber

Answer 11

@WalkingShark mind if i ask few more questions 2 more cause i have been on doing work and i gettting headace

Answer 12

Go ahead.

Answer 13

ky

Answer 14

What is the approximate circumference of a circle with a radius of 42.1 km?
Use 3.14.

A.
5565.4 km

B.
1391.3 km

C.
264.4 km

D.
132.2 km

Answer 15

Alright so this is a question similar to the one above. Put in the equation I gave you: 2pir
3.14x2(42.1)

Answer 16

ky almost done

Answer 17

What was your answer?

Answer 18

got its C. 264.4

Answer 19

That's correct.

Answer 20

yes htx now 1 more left ky thats all

Answer 21

Lay it on me.

Answer 22

What is the approximate circumference of the circle?
Use 3.14



A.
70.65cm

B.
141.3cm

C.
282.6cm

D.
6358.5cm

Answer 23

I'm guessing there's a picture with this as well?

Answer 24

oops and there is a pic
circle with radius of of 45cm

Answer 25

oops and there is a pic
circle with radius of of 45cm

Answer 26

It's the same equation as above.

Answer 27

so? what do i do?

Answer 28

Equation 2pir
3.14x2(45)

Answer 29

282.6 correct? if i am i am glad my brain still works lol i am tired

Answer 30

Yep, you got it.

Answer 31

well okay thx that all for today thx for ur help have a great day @WalkingShark :)

Answer 32

You as well.