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 183
Fig. 147a.—Oilcloth Design, EXERCISES 181. 1. Construct in a given square a quadrifoil of equal circlesintersecting in a common point, so that the quadrifoil shall be tangentto the sides of the square at their mid-points. Suggestion.—In Fig. 147, using OE, OF, OG, OH as diameters,construct circles.…
Geometry · Decoration and ornament
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