Elements of geometry : containing books I to VI and portions of books XI and XII of Euclid, with exercises and notes (1881)
Smith, J. Hamblin (James Hamblin), 1829-1901, Kirkland, Thomas, 1835-1898 · Toronto : W.J. Gage · leaf 320
y one plane, and one only.Hence the plane is completely determined. Cor. IV. Tivo ptarallel lines determine a plane. For, by the definition of parallel lines, the two lines are inthe same plane, and as only one plane can be drawn to containone of the lines and any point in the other line, it… … Let AB and CD be two planes that cut one another.TJeen must their common section be a straight line. Let Mancl ^^be two points common to botli planes. Draw the straight line MX. Then •.• M and N are common to both planes, .•. the St. line MX lies in both planes. XI. Def. 1. And no point, out of…
Geometry · Geometry, Plane
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