make a cylinder with base diameter 5.6 cm and height 14 cm find its TSA LSA and volume
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base diameter 5.6 cm and height 14 cm find its TSA LSA and volume
whose radius is 7 cm and the TSA = 968 sq cm?
The two circular ends of the cylinder have a total area of 2*(pi)r^2 = 2*(22/7)*7*7 = 308 sq cm.
So the lateral surface area should be 968 - 308 = 660 sq cm. This must be equal to 2(pi)rh = 2*(22/7)7*h = 44h = 660, so h = 660/44 = 15 cm.
So the height of the cylinder is 15 cm.
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