Question

331 A well of diameter 3 m is dug 14 m deep. The mud obtained has been uniformly spread
in the form of circular ring of width 4 m to form an embankment. Find the height of the
embankment.​

Answer 1

Answer:

1.125 m

Step-by-step explanation:

Find the volume of the mud dug up:

Volume = πr²h

Volume = π(3 ÷ 2)²(14)

Volume = 99 m³

Find the area of the embankment:

Area = π(1.5 + 4)² - π(1.5)²

Area = 88 m²

Find the height:

Volume = base area x height

99 = 88 x height

height = 99/88 = 1.125 m

Answer: The height is 1.125 m

Answer 2

Answer:

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