Paris Pamfilos, The triangle construction { α, b-c, t_A},
Forum Geometricorum, 16 (2016) 115--117.

Abstract. We study the problem of constructing a triangle from the data {α, b-c, t_A}, t_A being the length of the internal angle bisector of angle A of a triangle with side lengths a, b, c, and angles α, β, γ. The key-point is the detection of a parabola intimately related to the construction problem.

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