Surface Area of Solids

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Surface Area of Solids: Overview

From this topic, we will learn some formulas to find the surface area of different three-dimensional figures. These figures include cylinders and hollow cylinders. Furthermore, it gives some solved questions to explore this concept.

Important Questions on Surface Area of Solids

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The length, breadth and height of a cuboid are in the ratio 3 : 4 : 6 and its volume is 576 cm3. Find the whole surface area of the cuboid.

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The sum of length, breadth and height of a cuboid is 19 cm and its diagonal is 11 cm. Find the surface area of the cuboid.

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The paint in a certain container is sufficient to paint an area equal to 9.375 m2. How many bricks of dimensions 22.5 cm×10 cm×7.5 cm can be painted out of this container?

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Two cubes have volumes in the ratio 1:27. The ratio of the area of the face of one to that of the other is _____

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What are the dimensions (length, breadth and height respectively) of a cuboid with volume 720 cm3 , surface area 484 cm2 and the area of the base 72 cm2?

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If the length of the diagonal of a cube is 83 cm, then its surface area is _____

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If each edge of a cube is increased by 50%, the percentage increase in surface area is -

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The length of a room is 43 times its breadth. The total area of the 4 walls of this room is 2815 times the area of the floor of the room. What is the ratio between the height of the room to the length of room?

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The sum of length, breadth and depth of a cuboid is 19 cm, and its diagonal is 55 cm. Its surface area would be:

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The sum of length, breadth and depth of a cuboid is 19 cm and its diagonal is 55 cm. What will be its surface area?

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If the side of a cube is increased by 100%, then by what percentage is the surface area of the cube increased?

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A room is 6m long, 5 m broad and 4 m high. If all the walls are to be covered with paper 50 cm wide, the length of the paper is:

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If the volumes of two cubes are in the ratio 27:64, then the ratio of their surface areas is ________.

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The height of a room is 14 of the sum of length and breadth and the cost of painting its walls at the rate of 50 p per m2  is 400. Find its height?

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 A cylinder of diameter d and height h then its curved surface area in square units is

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Find the total surface area of a cube with side length 6 cm.

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Find the lateral surface area of a cuboid with dimensions length =3 cm, breadth =2 cm and height =5 cm.

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Find the lateral surface area of a cuboid with dimensions length =2 m, breadth =4 m and height =5 m.

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The surface area of a cube is 13.5 m2. What is the length of its diagonal?

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A right circular cylinder is just enclosed a sphere of radius r, then :

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