A well with diameter 5.6 m and depth 25 m so dug out is spread out on a rectangular plot of length 20 m and breadth 11 m. Find the height of the platform by spreading soil.
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volume of soil dug out is pi ×r²×h = 22/7 × 28/10×28/10×25=616m³
area of plot = 20m×11m = 220m²
so height of platform =
volume of soil ÷ area of plot
so , height is 616÷220 m = 2.8m
area of plot = 20m×11m = 220m²
so height of platform =
volume of soil ÷ area of plot
so , height is 616÷220 m = 2.8m
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