Page 270 - Start Up Mathematics_7

Fig. 1 Fig. 2 Fig. 3

• In an isometric sketch the measurements agree with those of the solid.
• In an isometric sketch the inclination of the sides is such that each one unit is represented by a side of
an equilateral triangle.

Example 2: Given an oblique sketch of a cube, draw an isometric sketch that
matches with this drawing.
3
Solution: Follow the steps given in the previous example to obtain the
isometric sketch of the cube shown below. 3
3

EXERCISE 15.3

1. The dimensions of a cuboid are 6 cm, 4 cm and 2 cm respectively. Draw three different
isometric sketches of the cuboid.
2. Four cubes of 2 cm edge are placed side by side to form a cuboid. Sketch an oblique as well
as an isometric sketch of the resulting cuboid.
3. Make an isometric sketch of each of the following:

2

2
(a) 2 (b) 2 2

2
7 2

6

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