Which of the following is a plane figure?

The total surface area of a cube of side a is

The lateral surface area of a cuboid of length l, breadth b and height h is

The dimensions of a box are 1 m, 80 cm and 50 cm. The area of its four walls is

The area of the four walls of a room is 300 m². Its length and height are 15 m and 6 m respectively. Find its breadth. 

The diameter of a football is five times the diameter of a criket ball. Ratio of surface areas of football and criket ball is _____________

How many faces does a right circular cylinder have?

Find the volume of a right circular cone with radius 6 cm and height 7 cm.

Two cylinders have bases of same size. The diameter of each is 7 cm. If one of the cylinder is 10 cm high and the other is 20 cm high, then the ratio of their volumes is _________________

The radii of two right circular cylinders are in the ratio 2:3 and their heights are in the ratio 5:4, then the ratio of their volumes will be _______________

The length, breadth, and height of a cuboid are 15 cm, 10 cm, and 20 cm. Find the surface area of the cuboid.

Three cubes are placed adjacent to each other in a row. Find the ratio of the total surface area of the cuboid so formed and that of anyone of these cubes.

The surface area of a cuboid is 1372 cm².If its dimensions are in the ratio 4: 2: 1, find its length.

The curved surface area of a right circular cylinder of height 14 cm is 88 cm². Find the diameter of the base of the cylinder.

It is required to make a closed cylindrical tank of height 1 m and base diameter 140 cm from a metal sheet. How many square meters of the sheet are required for the same?

In a hot water heating system, there is a cylindrical pipe of length 28 m and diameter 5 cm. Find the total radiating surface in the system.

Find:
(i) the lateral or curved surface area of a closed cylindrical petrol storage tank that is 4.2 m in diameter and 4.5 m high.
(ii) how much steel was actually used if \(\frac { 1 }{ 12 } \) of the steel actually used was wasted in making the tank?

Two cubes of side 6 cm each, are joined end to end. Find the surface area of the resulting cuboid.

The length and breadth of a hall are in the ratio 4:3 and its height is 550 cm. The cost of decorating its height is 550 cm. the cost of decorating its walls on Diwali (including doors and windows) at Rs. 6.60 per square meters is Rs 5082. Find the length and breadth of the room.

Curved surface of cylindrical reservior 12 m deep is plastered from inside with concrete mixture at rate of Rs 15 per m². If the total payment made is of Rs 5652, then find the capacity of this reservoir in litre.

A hemispherical bowl of internal diameter 36 cm contains a liquid. This liquid is to be filled in cylindrical bottles of radius 3 cm and height 6 cm. How many bottles are required to empty the bowl?\(\left[ use\quad \pi =\frac { 22 }{ 7 } \right] \)

Arihant builds a room measuring roof 22 m by 20 m. He also builds a cylindrical tank having diameter of base 2 m and height 3.5 m sdjoining the room to collect the rain water of roof for harvesting.
(i) If the tank is just filled with rain water, find the rainfall in cm.
(ii) What values are depicted in Arihant's plan?