Theorem 7.5.1: Pappus’s Theorem on VolumessTheorem.pdf · Theorem 7.5.1: Pappus’s Theorem on...
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Theorem 7.5.1: Pappus’s Theorem on Volumes: Suppose a solid is created by revolving region Ω in the plane around any axis, such that Ω does not cross this axis. Then the volume of the solid is given by: 2 V RA π = Where R is the distance from the centroid of Ω to the axis of revolution and A is the area of the region Ω
Transcript of Theorem 7.5.1: Pappus’s Theorem on VolumessTheorem.pdf · Theorem 7.5.1: Pappus’s Theorem on...
Theorem 7.5.1: Pappus’s Theorem on Volumes: Suppose a solid is created by revolving region Ω in the plane around any axis, such that Ω does not cross this axis. Then the volume of the solid is given by: 2V RAπ= Where R is the distance from the centroid of Ω to the axis of revolution and A is the area of the region Ω
Find the centroid of the region bounded by y = x2 , x = 2, and y = 0. Then find the volume of the region when revolved about the x-axis and then the y-axis.
