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 40
e side is a and the area of the sector KOX. The area of the segment is tj— -j v3. Adding this to the area of the sector, we find the area of the half oval to be -^(4ir—ZVZ). 5. If AD = 12, find the area of the figure LXOY. Ans. 6(3V3-7r), or 12.32+. DESIGNS IN RECTANGLES AND PABALLELOGSAMS 27 6. If… … Fig. 31.— Stair Railing. Fig. 3ia. 38. In Fig. 31 ABCD is a paraUelograin with four tangent circlesinscribed. EXERCISES 1. If the lines A C and BD are supposed to be indefinite in extent,show how to construct circle 0 tangent to the lines A C, AB, and BD,and circle X tangent to lines 4 C and BD and…
Geometry · Decoration and ornament
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