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 110
FROM ARCS OF CIRCLES 97 2. Prove that the curved figures CEDHC and CHKLC are con-gruent. Suggestion. — Draw the chords CE, DE, etc., and CH, IIK, etc.Prove that (1) the quadrilaterals thus formed are congruent; (2)corresponding arcs as CE and CH, ED and CH are equal; (3) con-e-sponding arcs lie on…
Geometry · Decoration and ornament
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