Mathematics
If the volume of a cylinder of height 7 cm is 448 π cm3, find its lateral surface area and total surface area.
Related Questions
A wooden pole is 7 m high and 20 cm in diameter. Find its weight if the wood weighs 225 kg per m3.
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.
(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.
The circumference of the base of a cylindrical vessel is 132 cm and its height is 25 cm. Find the
(i) radius of the cylinder.
(ii) volume of the cylinder.