congruence: Quick Facts

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Photos

Three theorems of congruent triangles

Figure 4: Two constructions [(a) and (b)] used in the theory of congruence.

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Topics

side-angle-side theorem Chinese remainder theorem Bridge of Asses mathematics infinity proportionality inequality orthogonality analysis probability theory cryptology computer science combinatorics algebra

Key People

Engraving portrait of Carl Friedrich Gauss wearing a cap and formal 19th-century clothing, with detailed shading around his face and upper body.

Carl Friedrich Gauss

German mathematician