antray930 antray930
  • 18-10-2017
  • Mathematics
contestada

A sphere with a diameter of 16mm has the same surface area as the total surface area of a right cylinder with the base diameter equal to the sphere diameter. How high is the cylinder?

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playlist128 playlist128
  • 18-10-2017
4πrsquare= 2πrsquare+2πrh
2πrsquare=2πrh
R=h
So h=16/2=8mm
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