a well with 3 m inside diameter is dug 14m deep earth taken out of its is spread all around to width of 4m to form an embankment find the height of embankment
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Answer is in the pic below....
Diagram is also given......
hope it is correct
Diagram is also given......
hope it is correct
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Volume of Earth Taken Out = Volume Of Embakment
Πr²h = Πh(R²- r²)
22/7×3×3×14 =22/7×h(7²-3²)
22×3×3×2 =22/7×h(49-9)
22×3×3×2×7/22 = 40h
h = 22×3×3×2×7/40×22
h = 3.15 m
Πr²h = Πh(R²- r²)
22/7×3×3×14 =22/7×h(7²-3²)
22×3×3×2 =22/7×h(49-9)
22×3×3×2×7/22 = 40h
h = 22×3×3×2×7/40×22
h = 3.15 m
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