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volume of frustum of a cone = πh/3 [ R² + Rr + r² ]
on putting values
and solving v = 943.75 cm³ = 0.94375 litres
also TSA = πl ( R+r )
here l = √(R-r)² + h²
l = 41.23
on putting values
and solving TSA = 490.8738
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