Page 69 - Concepts of Reasoning-8

Worksheet-13.6

Construction of Special Types of Quadrilateral

1. Complete the following table. One has been done for you :

Solid shape Perimeter of the base Perimeter of the base × height Lateral surface area
Cube 4l 4l 2 4l 2

Cuboid

Cylinder

What do you observe?

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2. Complete the following table. One has been done for you :

Solid shape Area of the base Area of the base × height Volume
3
2
Cube l l l 3
Cuboid

Cylinder

What do you observe?

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2
3. Find the side of a cube whose surface area is 1734 cm .
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4. Find the cost of painting a room (except the bottom) of dimensions 6 m, 4 m and 5 m at the rate of `1
per square meter.

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5. A rectangular sheet of length 88 cm and breadth 36 cm is rolled along the length to make/form a
cylinder. Find the total surface area of the cylinder so formed.
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6. How much quantity of water in litres can be stored in a cylindrical tank with radius 21 cm and height
2.8 m?
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7. Find the thickness of the hollow metallic cylinder whose internal radius, height and total surface area
2
are 5 cm, 10 cm and 572 cm respectively.
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69 Reasoning - 8