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 73
thearea of A EFK accords with the theorem: The areas of triangleshaving equal bases are to each other as their altitudes. 60 PARQUET FLOOR DESIGNS 1 9. If the area of the star is - of the whole square, find PK. Ans.PK=OP(-Kk Suggestion. — Use equation a^ ( ~ ) = — \ 2 n / k- 10. If the sum of the… … 68. Figure 57 is based upona special case of Fig. 56. Theunit of which it is composed isshown in square ABCD, where£K, KF, FL, etc. bisect the^iOEP, OFP, OFQ, etc., re-spectively. Fig. 57. — Arabic Design from Cairo, Bourgoin(2), Vol. 7, III, PI. I and 68. EXERCISES 1. Prove that EK, KF, and OB are…
Geometry · Decoration and ornament
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
