Question

Find the surface area of a cuboid whose dimensions are 7 cm × 0.57 dm × 0.14 m

Answer 1

Given length of the cuboid = 7 cm

Breadth of the cuboid = 0.57 dm = 0.57*10 = 5.7 cm {since 1 dm = 10 cm}

and height of the cuboid = 0.14 m = 0.14*100 = 140 cm {since 1 m = 100 cm}

Now, Surface area of the cuboid = 2(length*breadth + breadth*height + length*height)

=> Surface area of the cuboid = 2(7*5.7 + 5.7*140 + 7*140)

=> Surface area of the cuboid = 2(39.9 + 798 + 980)

=> Surface area of the cuboid = 2 * 1817.9

=> Surface area of the cuboid = 3635.8 cm2