## A community for students. Sign up today

Here's the question you clicked on:

## gabbyalicorn one year ago A wheel has a diameter of 16 cm. Approximately how far does it travel in 5 revolutions? A. 502.4 cm B. 251.2 cm C. 100.48 cm D. 80 cm

• This Question is Closed
1. gabbyalicorn

@johnweldon1993 i think 80 what im doing : 16 x 5

2. johnweldon1993

When you travel 1 rotation...how far do you go? *hint...you travel in 1 full circle...so you cover how much distance?

3. gabbyalicorn

360

4. johnweldon1993

Okay right...360 degrees...which is also equal to $$\large 2\pi$$ right?

5. gabbyalicorn

well when i did 2 x 3.14 it got me to 6.28

6. gabbyalicorn

which is 100.48

7. gabbyalicorn

divide 100.48 by 16

8. gabbyalicorn

oh wait no i was wrong

9. gabbyalicorn

so 100.48 x 5

10. gabbyalicorn

i just realized that

11. gabbyalicorn

which would be 502.4

12. gabbyalicorn

which would be A

13. gabbyalicorn

:D yay!

14. unknownunknown

c/d = pi. c = pi * d = 16 * pi. Times 5 rotations = 16 * pi * 5 = 251.2

15. johnweldon1993

Hang on 1 second...

16. johnweldon1993

Yes >.< that is correct right there! Dumb mistake!

17. gabbyalicorn

oh kk thanks again

18. unknownunknown

Easy to make

19. johnweldon1993

Thank you @unknownunknown it must be too late for me to think!

20. unknownunknown

Haha, don't worry I make worse all the time.

#### Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy