Elements of geometry : containing the first six books of Euclid, with a supplement on the quadrature of the circle, and the geometry of solids : to which are added, Elements of plane and spherical geometry (1826)
Playfair, John, 1748-1819, Euclid · Philadelphia : Marot & Walter · leaf 47
ngle HK,F equal to the angle Ej and. . a ■ • % 46 ELEMENTS to the straight Hue GH (44.1.) apply the parallelogram GM equalto the triangle DBC, having the angle GHM equal to the angle PLAnd because the angle E is equal to each of the angles FKH, GHM,the angle FKH is equal to GHM; add to each of… … A because at the point H in the straight line GH,the two straiglit linesKH, HM, upon the opposite sides of GH, make the adjacent anglesequal to two right angles, KH is in the same straight line (14. 1.)with HM. And because the straight line HG meets the parallelsKM, FG, the alternate angles MHG,…
Euclid's Elements · Geometry · Trigonometry
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