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On Certain Remarkable Triangles
Published online by Cambridge University Press: 20 November 2018
Extract
In his fine and stimulating book Introduction to geometry (1), Coxeter considers three mutually tangent circles C1 , C2, and C3 (Fig. 1) and calculates the radii of the two circles E1 and E2 that touch all these three. If the centres of Ci are the vertices of a triangle ABC their radii are s — a, s — b, and s — c; α, β, and γ are defined by
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- Copyright © Canadian Mathematical Society 1963
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