are and it cuts the quadrant arc at F. A line, parallelto a side of the square, is drawn through F. This line determines a root-two DYNAMIC SYMMETRY 23 rectangle and DE is its diagonal. A diagonal to a root-two rectangle cuts thequadrant arc at H. GD is a root-three rectangle, the diagonal of which… … Fig. 9. The root ratios outside of a square are obtained from diagonals, Fig. 10. AB, the diagonal of the unit form or square, determines the point C, the sideof a root-two rectangle. The diagonal of a root-two rectangle, as AD, becomesthe side of a root-three rectangle, as AE. AF, the diagonal of…
Vases, Greek
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