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 170
168. Figure 135 is based on Fig. 134.Figure 13Sa shows the working drawingfoT icertain parts of Fig. 1356 and is based onFig. 135. … Fig. 1356.—Scottish Rights Church,St. Louis. EXERCISES 1. How many degrees in the arc TRA of Fig. 135 ? Ans. 210°. 2. Prove that the curved figures AEBTR and BFCST are con-gruent. 158 GOTHIC TRACMBT: FORMS IN CIRCLES 3. liAO = r, find the area of the figure AEBTR. Ans. — (23 TT - 12 ttVa - 42 V3 +…
Geometry · Decoration and ornament
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