and hence total surface area 8f eubolu.A well is dug 16 m deep with a

1.	and hence total surface area 8f eubolu.A well is dug 16 m deep with a diameter of 1.4 m. The earth taken out is spread over a rectangular plot oflength 11 m and breadth 0.8 m to increase the level of ground. What is the height by which level has beenraised?c tnd its volume.
Answer» Volume of the earth taken out from the well = πr²h = 3.14x(0.7)²x16 = 24.63 m³ volume will be same in both cases. volume of the rectangular plot that is volume of a cuboid= lxbxh11x0.8xh=24.63h=(24.63/8.8)h=2.798 ~= 2.8m

and hence total surface area 8f eubolu.A well is dug 16 m deep with a diameter of 1.4 m. The earth taken out is spread over a rectangular plot oflength 11 m and breadth 0.8 m to increase the level of ground. What is the height by which level has beenraised?c tnd its volume.

Answer»

Volume of the earth taken out from the well = πr²h = 3.14x(0.7)²x16 = 24.63 m³

volume will be same in both cases.

volume of the rectangular plot that is volume of a cuboid= lxbxh11x0.8xh=24.63h=(24.63/8.8)h=2.798 ~= 2.8m