Young, George, jr, Baxter, Hubert Eugene, joint author · New York, The Macmillan Co. · leaf 264
Fig. 228 XII, § 2091 SHADES AXD SHADOWS 247 … line ab. The remainder of the line ah casts its shadow on V, in the line 6o.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 /. The method of casting the shadow is found…
Geometry, Descriptive
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