Answer :
Given:
Radius (r1) [Upper base] =
= 2 cm
Radius (r2) [Lower base] = = 1 cm
Capacity of glass = Volume of frustum of cone
= h (r12 + r22 + r1r2)
= h [(2)2 + (1)2 + (2) (1)]
= *
* 14 [4 + 1 + 2]
=
= 102 cm3
Hence, the capacity of the glass = 102 cm3
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