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A well of diameter 8 meters has been dug to the depth of 21m. the volume of the earth dug out is |
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Answer» Step-by-step explanation: The volume of the earth dug is 704 m³. Step-by-step explanation: Given : Diameter = 8 m Depth = 14 m To FIND : The Volume of earth dug out Solution : Well is a CYLINDER, the volume is cylinder will be the volume of the earth dug out. The depth is the height. ★ Volume = πr²h Height = 14 m Radius = 8/2 = 4 m ⇒ 22/7 × 4 × 4 × 14 ⇒ 22/7 × 16 × 14 ⇒ 22/7 × 224 ⇒ 4928/7 ⇒ 704 Volume = 704 m³ Therefore, the volume of the earth dug is 704 m |
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