A source book of problems for geometry, based upon industrial design and architectural ornament (1912)
Sykes, Mabel, 1868-, Slaught, H. E. (Herbert Ellsworth), 1861-1937, Lennes, N. J. (Nels Johann), 1874- · Boston, Allyn and Bacon · leaf 238
ce DS = OG, DO^ - OS^ = 00^ -If radius of circle 0 hs r, 0 D -■ s2~ 00 =-+ r.4 OG=--ii The above equation becomes [5 — ) = (j + ) ~(i~)1 Hanstein, PI. 19. FOBMS CONTAINING TANGENT CIRCLES 225 4. Construct circle 0. 5. What fraction of the area of the semicircle A CB is occupied bythe three included… … Fig. 203. EXERCISES 246. 1. Problem. — To construct a circle tangent to a given lineat a given point and to a given circle. Suggestion. — See Fig. 203. Let 0 be the given circle, AB the givenline, and P the given point. From 0 and P draw lines perpendicularto AB. Let the perpendicular through 0 cut…
Geometry · Decoration and ornament
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