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When the semi-circular flag below is rotated, it has a volume of un3

  1. Describe the resulting three-dimensional figure.

    Use the eTool below to visualize the rotating flag.
    Click the link at right for the full version of the eTool: Calc 1-60 HW eTool

  2. What is the value of ?

    Prism: ;   Cylinder: ;   Sphere: ;  Pyramid: ;  Cone: 

  3. If the diagram is rotated and the flag is then rotated about a horizontal pole, will the volume change?

Vertical segment, with shaded semicircle right of segment, with it's diameter on the top 3 fourths of the segment, distance across semi circle labeled, d.