Earth dug out on making a circular tank of radius 7m is spread all round the tank uniformly to a width of 1m to form an embankment of height 3.5m. Then find the depth of the tank.
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Radius = 7m, width = 5m, radius of embankment = 8m, height of embackment = 3.5m.
Volume of mud = volume of embackment.
pie × r2 × h1 = pie × (r2 square - r1 square) × h
7 square h = 8 square - 7 square × 35/10
49 × h = 64 - 49 × 35/10.
h = 15/2 × 1/7 = 15/14m.
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Volume of mud = volume of embackment.
pie × r2 × h1 = pie × (r2 square - r1 square) × h
7 square h = 8 square - 7 square × 35/10
49 × h = 64 - 49 × 35/10.
h = 15/2 × 1/7 = 15/14m.
Mark me as the brainliest for the right answer.
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