Question

The height and radius of a cylinder are equal and it’s curved surface area is 2772cm square.Find the circumference of the base of the cylinder.

Answer 1

Answer:

Volume of the Hemisphere= V=2/3πr^3 Curved surface area=S= 2πr^2

So V/S= 2/3πr^3 ÷ 2πr^2 = 1/3 r

Therefore 1/3 r= V/S= 19404/2772 = 7

So r= 7 x 3

r= 21

radius = 21- cm.

Step-by-step explanation:

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