Mathematics
In the given figure, a rectangular tin foil of size 22 cm by 16 cm is wrapped around to form a cylinder of height 16 cm. Find the volume of the cylinder.
Related Questions
An electric geyser is cylindrical in shape, having a diameter of 35 cm and height 1.2 m. Neglecting the thickness of its walls, calculate
(i) its outer lateral surface area
(ii) its capacity in litres.
A school provides milk to the students daily in cylindrical glasses of diameter 7 cm. If the glass is filled with milk upto a height of 12 cm, find how many litres of milk is needed to serve 1600 students.
(i) How many cubic meters of soil must be dug out to make a well 20 meters deep and 2 meters in diameter ?
(ii) If the inner curved surface of the well in part (i) above is to be plastered at the rate of ₹ 50 per m2, find the cost of plastering.
A roadroller (in the shape of the cylinder) has a diameter 0.7 m and its width is 1.2 m. Find the least number of revolutions that the roller must make in order to level a playground of size 120 m by 44 m.