An elementary treatise on modern pure geometry (1893)
Lachlan, Robert · London, New York, Macmillan and Co. · leaf 269
e found to correspond to some of the circlesconnected with a linear triangle. We shall find it convenient to consider the angles of a triangleas measured in the same way as the angles of a linear triangle.The angles of a triangle will not necessarily be the same as theangles of intersection of the… … The angles of the several triangles formed by the circles BG,CA, AB are easily seen to be given by the scheme : ABC a /3 7 ABC a n-^ iT-y ABC n — a ^ n-y ABC IT —a n-^ y ABC a n-^ ■K-y ABC TT-a H Tt-y ABC n — a IT-P > ABC 27r-a 2n--3 27r--y 398. The inscribed circle of any triangle and the…
Geometry
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