The area of four walls of a room is 360square metre and the sum of its length and breadth is 30 m. Find the height of the room
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area of four walls = lateral surface area.
lateral surface area = 2(h*b+l*h)=360
there fore 2h(l+b)=360
in question l+b is given as 30.
2h(30)=360
60h=360
therefore h = 6m.
hope it helps.
lateral surface area = 2(h*b+l*h)=360
there fore 2h(l+b)=360
in question l+b is given as 30.
2h(30)=360
60h=360
therefore h = 6m.
hope it helps.
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