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 93
are, but is wholly within it, so that none ofits vertices lie on the sides of the square. G H A 2// Ws \ ?^\^)C i )r /6 m/ <\ 8 \/ /(\ ^-VxA/ 5 i>-^\Y\ /Z /^-^ D 7\^\ r u E Fig. 72. EXERCISES90. 1. Construct Fig. 72 from the square ABCD.Suggestion. —• Draw the diameters and diagonals and… … Fig. 72a. — Cut-glass Design. 2. Prove that BH, FH, and CH are concurrent. 3. Prove that OB = OH, and that AB = GH. 4. Prove that Z GHE is divided into four equal parts by thelines BH, FH, and CH. 5. Prove that lines HB, GD, and AC are concurrent. Whatother lines are concurrent for the same reason…
Geometry · Decoration and ornament
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