A well 14m inside diameter is dug 15m deep. earth taken outbis spread all around To width of 7m to form an embankment. find the height of the embankment
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Volume of cylinder=Volume of embankment
Diameter = 14m
Radius=7m
Height=15m
πr2h=π(R2-r2)H
Width=7m
7+7=14
14-7=7
(H is the height of the embankment.. which we have to find)
22/7×7×7×15=22/7(14×14-7×7)H
2310=462×H
H=2310/462
H=5m
Hence, the height of the embankment is 5m...
hope this helps!!
cheers!! (:
Diameter = 14m
Radius=7m
Height=15m
πr2h=π(R2-r2)H
Width=7m
7+7=14
14-7=7
(H is the height of the embankment.. which we have to find)
22/7×7×7×15=22/7(14×14-7×7)H
2310=462×H
H=2310/462
H=5m
Hence, the height of the embankment is 5m...
hope this helps!!
cheers!! (:
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