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 205
A and C as centers will intersect on the diameter through B,if they intersect at all. Prove this theorem. Show how it appliesto prove that P lies on OXz. How else does it apply in Ex. 3 ? 4. Prove that OT = OV, etc. Suggestion.—Turn the figure through an angle of 72°. X^ will fall onA and ERPD upon… … rig. 172. — From Rose Window, Kent, England. Brandon (I), Decorated, Sec. I, PI. 15. EXERCISES209. 1. Make a complete drawing for Fig. 172. 2. If OA = r, find the length of (1) EL, (2) EA, and (3) theradius of one of the circles. Ans. (1) |(V5 - 1); (2) |^10 - 2V5.
Geometry · Decoration and ornament
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
