A 40m deep well with radius 3.5m is dug & the earth taken out is evenly spead to from a platform of dimension 28m by 22m.find the heght of the platfoem?

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1. 28*22*h = π*3.5^2*40
h ≈ 2.5m

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posted by Steve
2. 2.5

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posted by value
3. student

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posted by tiumay
4. please you can long solution?

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posted by Nake
5. to work

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