# 2 Triangles Theorem

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Illustration used to prove that “If two triangles have two sides of one equal respectively to two sides of the other, but the included angle of the first greater than the included angle of the second, then the third side of the first is greater than the third side of the second.”

### Keywords

geometry, triangle, proof, triangles, angles, Sides, equal sides, theorem, prove, theorems, side relationships### Galleries

Geometric Theorems and Proofs### Source

C. A. Hart & Daniel D. Feldman *Plane And Solid Geometry* (New York: American Book Company, 1911) 61

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