railway RRB Technician Grade 3 Mock Test 2024 Quantitative Aptitude Mensuration Solid Figures

A solid metallic cylinder of base radius 4 cm and height \(5\frac{1}{3}\) cm is melted and recast into a sphere. What is the surface area of the sphere, in cm?

1
80 π
2
64 π
3
40 π
4
96 π
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