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 245
and D the given points. LetCD intersect AB at P. Find the mean proportional between PCand PD. Lay off PQ and PR equal to the mean proportional. Erectperpendiculars to ^fi at Q and R. Draw the perpendicular bisectorof DC, meeting the perpendiculars at 0 and O. Prove that O and 0are the required… … Fig. 2096. (2) Construct a circle tangent to the sides of an angle and passingthrough a given point. See Fig. 2096. Solution. — Let EBA be the given angle and C the given point.Draw OB the bisector of the angle. Draw CD so that OB is the per-pendicular bisector of CD. Construct a circle passing…
Geometry · Decoration and ornament
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