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A 20 m deep well with diameter 14 m is dug up and the earth dug out is evenly spread out to form a platform22 m x 14 m around well. Find the height of platform. |
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Answer» From the GIVEN DATA, volume of the cylindrical well=volume of the platform thus, πr²h=lbh (22/7)x7x7x20 = 22x14x h (SINCE dia=14m, r=7m) 22x140 = 22x14x h therefore, h=10m Height of the platform=10m |
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