The length, breadth and height of a room are l, b and h respectively. The area of four walls of the room is
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Answer:Step-by-step explanation: The total area A = 2h (l+b) i.e., A = 2 * 6 (7+8) = 12 * 15. = 180 square metres. Hence the total area of the four walls = 180 square metres.15-Sept-2019
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