Question

a cylindrical water tank is of diameter 7 m and height 2.1 m find the capacity of the tank in litres​

Answer 1

Answer:

capacity of the tank = volume of the cylindrical water

tank

Here, the height = 2.1 m

the diameter = 7 m, therefore the radius is

diameter/ 2 = 7/2= 3.5

And volume of cylinder = πr²h

= π X (3.5)² X 2.1

= 80.8 (or) 25.7π

Therefore it can hold a capacity of 80.8 litres

Step-by-step explanation:

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Answer 2

Answer:

Step-by-step explanation:

h=2.1m,

D=7 than r=d/2 it means 7/2

Volume of cylinder = 22/7× 7/2×7/2×2.1

=11×7/2×2.1

=11×0.35×2.1

=8.085