Surface Areas a...

The circumference of the base of a right circular cylinder is 44 cm. If its whole surface area is 968 cm²then the sum of its height and radius is

The curved surface area of a right circular cylinder is 4400cm² If the circumference of its base is 110 cm, then its height is

A cylindrical piece of maximum volume has to be cut out of an iron cube of edge 4 cm. then, the maximum volume of the iron cylinder is

If each bag containing rice occupies 2.1 m³ of space, then the number of full bags which can be emptied into a drum of radius 4.2 m and height 3.5 m is

If the radius of the base of a right circular cylinder is halved, keeping the same height, then the ratio of the volume of the reduced cylinder to the volume of the original cylinder is

In a cylinder, if radius is halved and height is doubled, the curved surface area will be

The radii of two cylinder are in the ratio 2 : 3 and their heights are in the ratio of 5 : 3. The ratio of their volumes is

The volume of a sphere of diameter 42 cm is

The surface area of a sphere of radius 3.5 cm is

The volume of a sphere is numerically equal to its surface area, then its diameter is