jakewalker44 jakewalker44
  • 11-04-2017
  • Mathematics
contestada

Circle P has a radius of 7 and Circle R has a diameter of 8. The circumference of Circle P is how much greater than the circumference of Circle R?

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irspow
irspow irspow
  • 11-04-2017
circumference is equal to 2pr

The difference between the two circumferences is:

d=2pR-2pr

d=2p(R-r)

d=2p(7-4)

d=6p units

d≈18.85 units (to nearest hundredth of a unit)
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