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 166
apable of a simplesolution ? CO V^ 6. Show that the point 0 divides CD so that = ^ OD 1 7. If CA = a, find the length of CD, CO, and OD. Am. (1) a (V2 - 1) ; (2) a (3 V2 - 4) ; (3) a (3 - 2\%. 8. li AC = a, find the area of the small circle. Ans.-ra^ (17 -12V2). 9. li AC = a, find the area of the… … Fig. 132a. — Hammet-beam Rafter. Bran-don (2), Pis. 18 and 19. EXERCISES 164. 1. In Fig. 132 Ji CA = CB and A ^ CB is a right trianglewith right angle at C, construct the circles 0, 0 and 0. 2. If AB = a, find the length of OD. Am. | (V2 - 1). 3. If AB = a, find the area of circle 0. Ans. -j- (3 -…
Geometry · Decoration and ornament
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