A WELL WITH 10M INSIDE DIAMETER IS DUG 8.4M DEEP .EARTH TAKEN OUT OFIT IS SPREAD ALL AROUND IT TO A WIDTH OF 7.5M TO FORM AN EMBANKMENT.FIND THE HEIGHT OF EMBANKMENT.
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height of embankment = 1.6m
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Answer:1.6m
Step-by-step explanation:
D=10m r =5m h=8.4m
Volume of the earth dug out
=πr^2h
= 22/7 *5*5*8.4
= 660m
Area of embankment =
π* (R²-r²) m²
= 22/7*{(7.5+5)²- 5²}
= 412.5m²
Height of embankment
= volume of the earth dug up /Area of the embankment
=660/412.5
=1.6m
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