Legendre, A. M. (Adrien Marie), 1752-1833, Brewster, David, Sir, 1781-1868, Davies, Charles, 1798-1876 · New York, Wiley & Long · leaf 50
centres (Prop. XIL) ; which is contraryto the supposition. Cor. Hence, if two circles touch each other, either exteinally or internally, their centres and the point of contact willbe in the same right line. Scholium. All circles which have their centres on the righthne AD, and which pass through…
Trigonometry · Geometry
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