Solids of revolution #5. This animation starts with a curve (y=fx) that goes above and below the X-axis. The positive and negative areas bounded by the curve are then limited by two boundaries to create two areas (red). This region then rotates about the X-axis to create a solid of revolution. Note that even though the curve becomes negative it still produces a solid figure.

Russell Kightley Media
PO Box 9150, Deakin, ACT 2600, Australia. Mobile phone Australia 0405 17 64 71
email RKM