Q2 of 67 Page 195

The length, breadth and height of a cuboid are 9 m, 2 m and 1 m respectively. The lateral surface area of the cuboid is:

Length of cuboid = l = 9 m


Breadth of cuboid = b = 2 m


Height of cuboid = h = 1 m


Lateral surface area of cuboid is surface area without the top and bottom surfaces


So here we won’t consider the area l × b


Lateral surface area = 2lh + 2bh


= 2h(l + b)


= 2 × 1 × (9 + 2)


= 22 m2

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