Question

2. The perimeter of a floor of a room is 30 m and its height is 3m. find the area of four walls of the room​

Answer 1

Perimeter of floor = 30m

Height of room = 3m

Area of four walls = Lateral surface area of room

Area of four walls = 2(l + b)h

Area of four walls = (30)(3) m

Area of four walls = 90 m

Answer 2

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