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?
A. 16 mm
B. 8 mm
C. 18 mm
D. 14 mm
1 answer:
The answer is 8mm and here's how:
4πsquare= 2πrsquare+2πrh
2πsquare=2πrah
R=h
So h=16/2=8mm
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