Recent content by ilaneden

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    Graduate Triangle Inequality Proof Using Euclidean Geometry

    proof the following using only euclidean geometry: Let S be any point inside a triangle ABC and let SP; SQ; SR be perpendicular to the sides BC;CA;AB respectively, then SA + SB + SC >= 2 (SP + SQ + SR) Hint: Set P1; P2 be the feet of the perpendiculars from R and Q upon BC. Prove fir st...