An elementary treatise on geometry : simplified for beginners not versed in algebra (1833)
Grund, Francis J. (Francis Joseph), 1805-1863 · Boston : Carter, Hendee & Co. · leaf 76
conditions of similarity. Moreover, we havethe proDortion CD : CE z=. CA : CB (preceding Query),and by drav/ing DH parallel to the side CB, also the pro-portion CD : BH (or ED) = AC : AB; therefore, thethree sides of the triangle DEC are proportional to thethree sides of the triangle ABC, which is… … QUERY XVIL If the three angles in onetriangle are equal to thethree angles in another tri-angle, each to each, tohatrelation do these trianglesbear to each other 7 A. They arc similar. Q. How can you prove it 1 A. By applying the triangle ahc to the triangle ABCthe angle at c will coincide with the…
Geometry, Plane
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
