Young, George, jr, Baxter, Hubert Eugene, joint author · New York, Macmillan · leaf 266
Fig. 228 XII, § 209] SHADES AND SHADOWS 247 … line ah. The remainder of the line ah casts its shadow on V, in the line ho.208. Shadow of a Plane Solid. The shadow of a plane solid is determined by the shadows of its vertices or of its edges. In Fig. 229, the cube a-h is illu-minated from the point I. The method of casting the shadow is found…
Geometry, Descriptive
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