Legendre, A. M. (Adrien Marie), 1752-1833, Brewster, David, Sir, 1781-1868, Davies, Charles, 1798-1876 · New York, Wiley & Long · leaf 124
enllyA - VAx B. 124 GEOMETRY. Secondly- The altitude CM be-ing common, the triangle CPM isto the triangle CPE as PM is toPE ; but since CP bisects the an-gle MCE, we have PM : PE : :CM : CE (Book IV. Prop.XVII.) ::CD : CA : : A : A:hence CPM : CPE : : A : A ;and consequently CPM : CPM +CPE or CME :… … serve for determining B, and give us B: - ; and thus by A+A ^ means of the polygons A and B it is easy to find the polygonsA and B, which shall have double the number of sides. PROPOSITION XIV. PROBLEM. To find the approximate ratio of the circumference to thediameter. Let the radius of the circle…
Trigonometry · Geometry
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