Science and art drawing : complete geometrical course ; consisting of plane and solid geometry, orthographic and isometric projection, projection of shadow's the principles of map projection, graphic arithmetic and graphic statics (1895)
Spanton, J. Humphrey (John Humphrey) · London : Macmillan · leaf 120
of bisection in CB and DE parallel to AE. Weshall now find that the small square a enclosed by these linesis equal to the square a, and that the four trapezia round thesquare are in every way equal to the trapezia in the squareAEHB ; e.g. l — h,c = c,d — d, and e = e. CHAP. IX PROPORTIONAL AND… … CL Is. 1 A a / , c / * ^ Fig. 216, different sides, as shown by dotted lines, we are able to exhibitthe truth of this proposition. The divisions that bear thesame letters are equal to each other; e.g. a = a, h = h, etc.Erom this we can see that the rectangle AENM is equal tothe square ALKC, and the…
Geometrical drawing
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