gabbyalicorn
  • gabbyalicorn
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
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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gabbyalicorn
  • gabbyalicorn
@johnweldon1993 i think 80 what im doing : 16 x 5
johnweldon1993
  • johnweldon1993
When you travel 1 rotation...how far do you go? *hint...you travel in 1 full circle...so you cover how much distance?
gabbyalicorn
  • gabbyalicorn
360

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johnweldon1993
  • johnweldon1993
Okay right...360 degrees...which is also equal to \(\large 2\pi\) right?
gabbyalicorn
  • gabbyalicorn
well when i did 2 x 3.14 it got me to 6.28
gabbyalicorn
  • gabbyalicorn
which is 100.48
gabbyalicorn
  • gabbyalicorn
divide 100.48 by 16
gabbyalicorn
  • gabbyalicorn
oh wait no i was wrong
gabbyalicorn
  • gabbyalicorn
so 100.48 x 5
gabbyalicorn
  • gabbyalicorn
i just realized that
gabbyalicorn
  • gabbyalicorn
which would be 502.4
gabbyalicorn
  • gabbyalicorn
which would be A
gabbyalicorn
  • gabbyalicorn
:D yay!
unknownunknown
  • unknownunknown
c/d = pi. c = pi * d = 16 * pi. Times 5 rotations = 16 * pi * 5 = 251.2
johnweldon1993
  • johnweldon1993
Hang on 1 second...
johnweldon1993
  • johnweldon1993
Yes >.< that is correct right there! Dumb mistake!
gabbyalicorn
  • gabbyalicorn
oh kk thanks again
unknownunknown
  • unknownunknown
Easy to make
johnweldon1993
  • johnweldon1993
Thank you @unknownunknown it must be too late for me to think!
unknownunknown
  • unknownunknown
Haha, don't worry I make worse all the time.

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