A hall 20cm long and 10m wide,the area of its 4 walls is equal to the area of the floor and ceiling together. Find the height of the hall.
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A hall 20cm long and 10m wide,the area of its 4 walls is equal to the area of the floor and ceiling together. Find the height of the hall.
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2h (l+b) = 2 × l × b
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Use this formulae to find height
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