Mathematics
A wooden pole is 7 m high and 20 cm in diameter. Find its weight if the wood weighs 225 kg per m3.
Related Questions
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.
If the volume of a cylinder of height 7 cm is 448 π cm3, find its lateral surface area and total surface area.
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.
The area of the curved surface of a cylinder is 4400 cm2, and the circumference of its base is 110 cm. Find :
(i) the height of the cylinder.
(ii) the volume of the cylinder.