Surface Area And Volumes

Surface areas and volumes in one shot

Two cubes each of volume 64\ c m^3 are joined end to end. Find the surface area and volume of the resulting cuboid.

40 circular plates each of radius 7 cm and thickness 1.5 cm are placed one above the other to form a solid right circular cylindr. Find the total surface area and volume of cylinder so formed.

A cone of same height and same base radius is cut from a cylinder of height 8 cm and base radius 6 cm .Find the total surface area and volume of the remaining solid.

A toy is in the form of a cone mounted on a hemisphere of radius 3.5 cm. The total height of the toy is 15.5 cm find the total surface area and volume of the toy.

The length, breadth the thickness of rectangular sheet of wood are 3.230 m, 1.49 m and 1.99 cm respectively. Give the total surface area and volume of the sheet correct to the significant figures.

If h ,\ S\ a n d\ V denote respectively the height, curved surface area and volume of a right circular cone, then 3piV h^3-\ S^2h^2+9V^2 is equal to (a) 8 (b)0(c) 4pi (d) 32pi^2

A rocket is in the form of a right circular cylinder closed at the lower end and surmounted by a cone with the same radius as that of the cylinder. The diamter and height of the cylinder are 6 cm and 12 cm , respectively. If the slant height of the conical portion is 5 cm, the find the total surface area and volume of the rocket. ( use pi = 3.14 ).

The diagonal of a cube is 16sqrt3 cm. Find its surface area and volume.

The radius of base of a cylinder is 7 cm and height is 10 cm. Find its curved surface area and volume.