Mathematics
A cylindrical pillar has radius 21 cm and height 4 m. Find :
(i) the curved surface area of the pillar
(ii) the cost of polishing 36 such cylindrical pillars at the rate of ₹ 12 per m2.
Related Questions
The total surface area of a cylinder is 6512 cm2 and the circumference of its base is 88 cm. Find :
(i) its radius
(ii) its volume
The sum of the radius and the height of a cylinder is 37 cm and the total surface area of the cylinder is 1628 cm2. Find the height and the volume of the cylinder.
If the radii of two cylinders are in the ratio 4 : 3 and their heights are in the ratio 5 : 6, find the ratio of their curved surfaces.
A thin rectangular card board has dimensions 44 cm x 22 cm. It is rolled along its length to get a hollow cylinder of largest size. Find the volume of the cylinder formed.