a well 14 metre inside diameter is dug 15 metre deep earth taken out is spread all around to 2a with of 72 form and embankment find the height of of embankment
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Step-by-step explanation:
ANSWER
r=7m
h=15m
Volume of mud =πr
2
h
=
7
22
×7×7×15
=2310m
3
Area of ring =π[14
2
−7
2
]
⇒π(14+7)(14−7)
⇒14+π
Height =
Areaofring
volumeofmud
=
147π
2310
=5m.
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Answer:
r=7m
h=15m
Volume of mud =πr
2
h
=
7
22
×7×7×15
=2310m
3
Area of ring =π[14
2
−7
2
]
⇒π(14+7)(14−7)
⇒14+π
Height =
Areaofring
volumeofmud
=
147π
2310
=5m
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