A conical pit of top diameter 3.5 m is 12 m deep. What is its capacity in kiloliters ?

Solution:

Given diameter, d = 3.5 m

So radius, r = 3.5/2 = 1.75

Depth, h = 12 m

Volume of the cone = (1/3)r²h

=(1/3)×(22/7)×1.75²×12

= (22/7)× 1.75²×4

= 38.5 m³

= 38.5 kilolitres [1 kilolitre = 1m³]

Hence the volume of the conical pit is 38.5 kilolitres.