Question

A cuboid is 8m long, 12m broad & 3.5m high . Find its area of four walls​

Answer 1

Step-by-step explanation:

area of walls =4x(8x12)=384m²

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Answer 2

Area of four walls of a cuboid = The lateral surface area of the cuboid

Length, l = 8 m

Width, w = 12 m

Height, h = 3.5 m

Lateral Surface Area of a cuboid = 2h (l + w)

Lateral Surface Area = 2(3.5) (8 + 12)

Lateral Surface Area = 7 ( 20 )

Lateral Surface Area = 140 sq.m

Answer:

The area of four walls is 140 sq.m