# A well with 10m inside in diameter is dug 14m deep . Earth taken out of it is spread all a round to a width of 5m to form an embarkment. Find the height of embarkment

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depth = 14 m

volume of earth taken out = πr² h = π×(5)²×14= 1100 m³

now, it is spread to form embankment, which is in the form of hollow cylinder,

inner radius, r= 5 m

outer radius = 5 +5 = 10 m

height= h