A circular well with a diameter of 2 metres is dug to a depth of 14 metres. What is the volume of the earth dug out?
32 m3
36 m3
40 m3
44 m3
66 m3
Volume = πr2h= (227×1×1×14)m3 = 44 m3
A circular well with a diameter of 2 metres,is dug to a depth of 14 metres. What is the volume of the earth dug out?
(a) 32 m3
(b) 36 m3
(c) 40 m3
(d) 44 m3
How many cubic metres of earth must be dug out to sink a well which is 20 m deep and has a diameter of 7 metres? If the earth so dug out is spread over a rectangular plot 28 m by 11 m, what is the height of the platform so formed?