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Step 3: Join the corresponding corners of both Step 4: Redraw using dotted lines for hidden
squared faces. edges. (It is a convention).

Quick Check
Draw an oblique sketch
This is the required oblique sketch of cube of 3 units. of a cuboid of dimensions

Isometric Sketches 4 × 3 × 2 units.

In the oblique sketch of a solid on squared paper, the measures of the dimensions are not
proportional to the actual dimensions of the solid.
But, in the isometric sketch of a solid on dotted paper, the measures of the dimensions are
proportional to the actual dimensions of the solid.

An isometric sheet is made up of small equilateral triangles made using dots or lines on paper.
Let us draw a cuboid of dimensions 5 cm × 3 cm × 3 cm.

Step 1: Draw a rectangle of measure 5 cm × 3 cm Step 2: Draw four parallel line segments of
to show the front face. length 3 units, starting from the all four corners
of the rectangle.

Step 3: Connect the matching corners with Step 4: Thus, this is the required isometric
appropriate line segments. sketch of the cuboid of dimensions 5 cm ×
3 cm × 3 cm.

Example 1: Draw an isometric sketch of a cuboid of dimensions 4 cm × 4 cm × 3 cm on an isometric
dot paper.
Solution: An isometric sketch of a cuboid of dimensions 4 cm × 4 cm × 3 cm can be drawn as follows:

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