Question

how many litres of milk can a hemispherical bowl of diameter 10.5cm hold

Answer 1

the hemispherical bowl can hold milk is equal to the volume of the hemispherical bowl.

Given diameter of the hemispherical bowl = 10.5cm

radius of the hemispherical bowl (r) = 10.5/2 = 5.25 cm

volume = (2/3)*Π*(5.25)3

            = (2*3.14*5.25*5.25*5.25)/3    (Π = 3.14)

            = 2*3.14*5.25*5.25*1.75

           = 302.91 cm3

           = 303 cm3 

Now 1000 cm3 = 1 litre

So  303 cm3 = 303/1000 = 0.303 litres

So total amount of milk = 0.303 litres