The perimeter of the floor of a room is 18 m. What is the area of the walls of the room, if the height of the room is 3 m?
Given:
Perimeter of the floor = 18 m
Height of the room = 3 m
Formula Used:
Area of walls = Perimeter of the floor × Height
Solution:
Perimeter of floor = 2(l + b)
=> 2(l + b) = 18
=> l + b = 9 m
Area of walls = 2(l + b)h
=> 2 × 9 × 3
=> 54 m2
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