EXERCISE 15.2
Introduction - Ex. 15.2 - Visualising Solid Shapes - NCERT Class 7th Maths Solutions
Page No 285:
Question 1:
Use isometric dot paper and make an isometric sketch for each one of the given shapes: |  |
(i)
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(ii)
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 |  |
(iii)
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(iv)
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Answer:
The isometric sketch of these figures can be drawn as follows. |  |
(i)
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(ii)
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 |  |
(iii)
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(iv)
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Q 2, Ex 15.2 - Visualising Solid Shapes - Chapter 15 - Maths Class 7th - NCERT
Question 2:
The dimensions of a cuboid are 5 cm, 3 cm and 2 cm. Draw three different isometric sketches of this cuboid.Answer:
3 isometric sketches of the given cuboid can be drawn as follows. |  |
 |
Q 3, Ex 15.2 - Visualising Solid Shapes - Chapter 15 - Maths Class 7th - NCERT
Question 3:
Three cubes each with 2 cm edge are placed side by side to form a cuboid. Sketch an oblique or isometric sketch of this cuboid.Answer:
When three cubes, each of 2 cm edge, are placed side by side, a cuboid with dimensions as 6 cm, 2 cm, and 2 cm will be formed. |  |
Isometric sketch
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Oblique sketch
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Question 4:
Make an oblique sketch for each one of the given isometric shapes:
Answer:
The oblique sketch of these figures will be as follows.
Page No 286:
Question 5:
Give (i) an oblique sketch and (ii) an isometric sketch for each of the following:(a) A cuboid of dimensions 5 cm, 3 cm and 2 cm. (Is your sketch unique?)
(b) A cube with an edge 4 cm long.
Answer:
(i) Oblique sketch
(ii) Isometric sketch
The sketch for the cuboid is not unique. The cuboid can also be drawn by taking the length as 3 cm or 2 cm. This will lead to a different view of the same cuboid.
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