A well with inside diameter 3m is dug 14m deep.Earth taken out of it is spread all around to a width of 4m to form an embankment.Find the hight of embankment?
Answers
Answered by
2
this is the appropriate answer for your question.
Attachments:
Answered by
3
Answer:
Height of embankment = 1.125m or 1.13m (approximately)
Step-by-step explanation:
Vol (well dug) = Vol (cylinder)
= π r^2 h
= 22/7 x 3/2^2 x 14
= 11 x 9
= 99 m^2
Vol (well dug) = Vol (embankment)
99 = Vol (hollow cylinder)
99 = πh(R^2 - r^2)
99 = 22/7 x h (11/2^2 - 3/2^2)
99 = 22/7 x h (28)
99 = 88h
h = 99/88
h = 1.125 m
Similar questions