Elements of geometry and trigonometry. Revised and adapted to the course of mathematical instruction in the United States (1856)
Legendre, A. M. (Adrien Marie), 1752-1833, Davies, Charles, 1798-1876 · New York : A.S. Barnes · leaf 144
PROBLEM.In a given circle to inscribe a regular decagon. Let 0 be the centre, and OA the radius of the givencircle. Divide the radius OA inextreme and mean ratio atthe point M (b. iv., pbob. 4):Take OM^ the greater seg-ment, and lay it off from Ato B; the chord AB willbe the side of the regu-lar… … 140 GEOMETEY.
Geometry · Trigonometry
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