Question

Using graph sheet, draw the net for the cuboid whose length is 5cm, breadth is 4cm and height is 3cm and also find its area.

Answer 1

Net for the cuboid is:

One of the possible nets for a cuboid of length = 5 cm, breadth = 4 cm, height = 3 cm is given above

Area of the cuboid

= 20 cm² + 15 cm² + 20 cm² + 15 cm² + 12 cm² + 12 cm² = 94 cm²

Using formula,

Surface area of a cuboid

= 2 (lb + bh + lh) unit²

= 2(5 × 4 + 4 × 3 + 5 × 3) cm²

= 2(20 + 12 + 15) cm²

= 94 cm²