Q1 of 24 Page 143

Find the total surface area of the cuboid with l =4 m, b =3 m, and h = 1.5 m.

Given: Length (l) = 4m

Breadth (b) = 3m


Height (h) =1.5m


To Find: Total Surface Area of a Cuboid


As we know, the total surface area includes area of all 6 faces of a cuboid



So, Total Surface Area of a Cuboid = 2 {(l × b) + (b × h) + (h × l)}


= 2 (4 × 3 + 3 × 1.5 + 1.5 × 4)


= 2 (12 + 4.5 + 6)


= 2 (22.5)


Total Surface Area of a Cuboid = 45 m2


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