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 125
hartres. Shaw (2)PI. 25. EXERCISES 1. Prove that the curved figures BDEF and CFGH are congruent. 2. If AB = i, find the area of the following figures: (a) the seg-ment inclosed by the arc AD and the chord AD; (V) DBFND;(c) DNFED. Am. (a) 1(2IT - 3V3) ; (&) ^(9V3 - 4 tt) ; (c) 1(4^ - 3V3). 3. If… … Fig. 101. —From Canterbury Cathedral. Parker (1), p. 161. 125. Figure 101 is based on a network of equilateral triangles. The ver-tices of the triangles are the centers and the line AB the radius for the arcsdrawn as shown.
Geometry · Decoration and ornament
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
