A cylinder has a curved surface area of 2640 cm2 and radius of 14 cm, what is the height of cylinder? (Take = ( frac{22}{7} ))

A cylinder has a curved surface area of 2640 cm2 and radius of 14 cm,

1.	A cylinder has a curved surface area of 2640 cm2 and radius of 14 cm, what is the height of cylinder? (Take = ( frac{22}{7} ))
A.	16cm
B.	20cm
C.	28cm
D.	30cm
Answer» E.

A water well has a height of 8m and diameter of 3.5m. What is the cost of plastering its curved surface and base at the rate of 50/m2? (Take = ( frac{22}{7} ))
A cylindrical water container of radius 56 cm and height of 180 cm is to be made from metal. What is the area of metal required? (Take = ( frac{22}{7} ))
A roller has diameter of 0.7m and length of 1m. It is used to roll over the cricket pitch. The surface area of the cricket pitch is equal to 60m2. How much revolution will roller make to move once over the pitch? (Take = ( frac{22}{7} ))
A cylinder has a curved surface area of 2640 cm2 and radius of 14 cm, what is the height of cylinder? (Take = ( frac{22}{7} ))
Curved surface area of a cylinder having base radius r and height h is equal to __________