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Chapter 4 Triangle Congruence Terms, Postulates and …

Name _____ 59 Geometry 59 Chapter 4 Triangle Congruence Terms, Postulates and Theorems Scalene Triangle - A Triangle with all three sides having different lengths. Equilateral Triangle - All sides of a Triangle are congruent . Isosceles Triangle - A Triangle with at least two sides congruent . Legs of an isosceles Triangle - The congruent sides in an isosceles Triangle . Vertex angle - The angle formed by the legs in an isosceles Triangle . Base - The side opposite the vertex angle. Base angles - The angles formed by the base. Isosceles Triangle Theorem If two sides of a Triangle are congruent , then the angles opposite those sides are congruent . Corollary 4-1 - A Triangle is equilateral if and only if it is equiangular. Acute Triangle - A Triangle with all acute angles. Equiangular Triangle - A Triangle with all angles congruent .

Name _____ 59 Geometry 59 Chapter 4 – Triangle Congruence Terms, Postulates and Theorems 4.1 Scalene triangle - A triangle with all three sides having different lengths. Equilateral triangle - All sides of a triangle are congruent. Isosceles triangle - A triangle with at least two sides congruent.

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