Hart, C. A. (Clara Avis), b. 1863, Feldman, Daniel D., b. 1872 · New York, American Book Co · leaf 314
Reproduced from Models made by High School Students BOOK VI 303 Proposition II. Theorhm 616. If two -planes intersect, their intersection is ast7ai£ht line* … Given intersecting planes MN and RS. To prove the intersection of MN and RS a str. line. Argument 1. Let A and B be any two points common to the two planes MN and RS. 2. Draw str. line AB, 3. Since both A and B lie in plane MN, str. line AB lies in plane MN, 4. Likewise str. line AB lies in plane…
Geometry, Plane · Geometry, Solid
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