RS Aggarwal Class 10 Maths Solutions Chapter 19 - Volume and Surface Area of Solids

Two cubes each of volume 27 cm³ are joined end to end to form a solid. Find the surface area of the resulting cuboid.

The Volume of a hemisphere is . Find its curved surface area.

If the total surface area of a solid hemisphere is 462 cm², find its volume.

A 5-m-wide cloth is used to make a conical tent of base diameter 14 m and height 24 m. Find the cost of cloth used at the rate of Rs 25 per metre.

If the volumes of two cones are in the ratio of 1 : 4 and their diameters are in the ratio of 4 : 5, find the ratio of their heights.

The slant height of a conical mountain is 2.5km and the area of its base is 1.54 km². Find the height of mountain.

The Sum of the radius of the base and the height of a solid cylinder is 37 metres. If the total surface area of the cylinder be 1628sq metres, find its volume.

The surface area of a sphere is 2464 cm². If its radius be doubled, what will be the surface area of the new sphere?

A military tent of height 8.25m is in the form of a right circular cylinder of base diameter 30 m and height 5.5 m surmounted by a right circular cone of a same base radius. Find the length of canvas used in making the tent, if the breadth of the canvas is 1.5 m.

A tent is in the shape of a right circular cylinder up to a height of 3 m and conical above it. The total height of the tent is 13.5 m and the radius of its base is 14 m. Find the cost of cloth required to make the tent at the rate of Rs 80 per square metre. [Take π = 22/7.]