Young, George, jr, Baxter, Hubert Eugene, joint author · New York, Macmillan · leaf 101
hme Y parallel to X. (Use a normal-caseauxiUary line.) > 2. Given the plane Z (45, Z* 30° r, 2 60° Z) and the point 6 (III,38, 8, 7). Through 6 pass the plane W parallel to Z. (Use a special-case hne.) 3. Given the plane U (3, t/ 30° I, U 45° I) and the point c (IV,16, 5, 7). Through c pass the… … Fio. 82 intersection is a point common to the two planes; hence it willbe in the line of intersection of the planes. Two such pointsare necessary to fully determine the line of intersection of .anytwo planes. YI, § 76] POINTS, LINES, AND PLANES 83 In Fig. 82 are shown two planes, X and Y. AU points…
Geometry, Descriptive
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