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## Homework Statement

Use the theorem of pappus to find the volume of the given solid

A sphere of radius r

## Homework Equations

V = 2∏xA

## The Attempt at a Solution

V = 2∏(4r/3∏)(4∏r^2) = (16/3)∏r^3

So something is wrong I should end up with (4/3)∏r^3 no?