MathDB
India TST 2009 DAY 1:PROBLEM 1

Source: easiest

May 14, 2009
geometrytrigonometrygeometric transformationhomothetyratiocircumcircleincenter

Problem Statement

Let ABC ABC be a triangle with ∠A=60∘ \angle A = 60^{\circ}.Prove that if T T is point of contact of Incircle And Nine-Point Circle, Then AT=r AT = r, r r being inradius.
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