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CONICS

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Proving Triangles Congruent

Proving Triangles Congruent. F. B. A. C. E. D. The Idea of a Congruence. Two geometric figures with exactly the same size and shape. How much do you need to know. . . . . . about two triangles to prove that they are congruent?.

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5.2 Similar Polygons

5.2 Similar Polygons. Two congruent polygons are also similar polygons. Two polygons are similar iff (if and only if) two conditions are satisfied. All pairs of corresponding angles are congruent. All pairs of corresponding sides are proportional.

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