Question

The perimeter of the floor of a room is 30m and it's height is 4m. find the area of the four Walls of the room

Answer 1

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Perimeter of the rectangular floor of the room = 2(l + b) = 30 m

height of the rectangular room = 4 m

Area of four walls = CSA of rectangular room

CSA of room = 2h(l + b)

CSA of room = h × 2(l + b)

= 4 × 30 m²

= 120 m²

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