A rain water harvesting pit is to be made in two shapes – (i) one with a rectangular base of
length 5 m and width 4cm, having a height of 15 m and (ii) another in the shape of cylinder with
circular base of diameter 7 m and height 10 m. Which pit has greater capacity and by how much?
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Answer:
cylinder by 84.65 m³
Step-by-step explanation:
answer to I =
volume of a cuboid = l*b*h
= 5*4*15 = 300 m³
answer to II =
volume of a cylinder =
= π * r²*h
= 3.14*r²*10
= r = d/2 = 3.5
= 3.14*3.5²*10
= 3.14 * 12.25 * 10
= 38.465*10
= 384.65 m³
therefore cylinder have more capacity than cuboid by 84.65 m³
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