(i) The sizes of the front face and its opposite face are same.

(ii) The edges, which are all equal in a cube, appear so in the sketch, though the actual measures of edges are not taken so.

You could now try to make an oblique sketch of a cuboid (remember the faces in this case are rectangles). You can draw sketches in which measurements also agree with those of a given solid. To do this we need what is known as an isometric sheet. Let us try to make a cuboid with dimensions 7 cm length, 3 cm breadth and 4 cm height on an isometric sheet.

To draw sketches in which measurements also agree with those of the given solid, we can use isometric dot sheets. In such a sheet the paper is divided into small equilateral triangles made up of dots or lines. Let us attempt to draw an isometric sketch of a cuboid of dimensions 7 × 3 × 4 (which means the edges forming length, breadth and height are 7, 3, 4 units respectively).