Question

an overhead water tankers is in the shape of a cylinder has capacity of 616 litres. the diameter of the tank is 5.6m. find the height of tank

Answer 1

Hi Dear !
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The Water Tanker is in the shape of cylinder 

So, Volume of tanker (V)= 616 liters=616000cm3

(using 1000cm3=1 liters )

Diameter of tanker(d)=5.6 m = 560 cm 

So ,Radius of tanker (r)= d/2 = 560/2 =280 cm 

height(h)= ?
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volume of cylindrical tanker = 616000 cm3 (Given)

then,      616000= pi x r x r x h 
        
               616000= 22/7 x 280 x 280 x h

               616000= 1724800/7 x h

               616000= 246400 x h
         
  616000/246400=h
                         h= 2.5 cm or 0.025 m
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Answer 2

1liter = 10^-3m^3
given
tank capacity = 616 li
v=0. 616 m^3----(1)
diameter=d =5.6m
radius =r =d/2
r= 5.6/2= 2.8m
volume = pi*r^2*h
= 22/7*2.8 * 2.8*h----(2)
(2)=(1)
22/7*2.8*2.8*h=0.616
h=(0.616*7)/(22*2.8*2.8)
after cancellation
h=0.025m