olymmath

Putnam 1971 A3

  • Session A

A-3. The three vertices of a triangle of sides a,ba, b, and cc are lattice points and lie on a circle of radius RR. Show that abc≧2Ra b c \geqq 2 R. (Lattice points are points in the Euclidean plane with integral coordinates.)

Dataset text PutnamGAP. Quoted with source.

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