The external diameter and the thickness of a hemispherical bowl are 22 cm and 0.5 cm respectively. What is the volume of the bowl? 
Options Mark for review
·        A)  
1.76 L
·        B)  
2.43 L
·        C)  
3.03 L
·        D)  
3.19 L

We have,External diameter of the hemispherical bowl, D = 22 cmExternal radius of the bowl, R = d2 = 11 cmThickness = 0.5 cmNow, internal radius of the bowl, r = R - 0.5 = 11 - 0.5 = 10.5 cmNow, capacity of bowl = 23πr3 = 23×227×10.53 capacity of bowl = 48512= 2425.5 cm3 = 2425.51000 = 2.4255 litres 2.43 litres

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