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A drinking glass is in the shape of a frustum of a cone of height 14 cm. The diameters of its two circular ends are 4 cm and 2 cm. Find the capacity of the glass. [Use π = 22/7]

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Radius (r1) of upper base of glass = 4/2 =2 cm

Radius (r2) of lower base of glass =2/2=1 cm

Capacity of glass = Volume of frustum of cone

Therefore, the capacity of the glass is

 

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