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Figure 6.12
Figure 6.13 Figure 6.14 Figure 6.15
A circle that is rotated about a diameter generates a sphere (Fig. 6.16) and if the circle is
rotated about a coplanar axis other than the diameter it generates a torus (Fig. 6.17).
Figure 6.16 Figure 6.17
Truncated solids: Section of solids (top and base not parallel) (Fig. 6.18).
Figure 6.18
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