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Section 4.5 – Isosceles and Equilateral Triangles

Learn about the properties of isosceles and equilateral triangles, including the theorems, bisectors, and corollaries associated with these triangle types. Explore the relationship between congruent sides and angles, and understand the significance of equilateral and equiangular triangles.

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Section 4.5 – Isosceles and Equilateral Triangles

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  1. Section 4.5 – Isosceles and Equilateral Triangles ISOSCELES: Ex. EQUILATERAL: Ex.

  2. ISOSCELES TRIANGLE THM: If two sides of a triangle are congruent, then ____________________________. CONVERSE OF ISOSCELES TRIANGLE THM: If two angles of a triangle are congruent, then ____________________________.

  3. The bisector of the vertex angle of an isosceles triangle is the ________________________.

  4. Corollaries: If a triangle is equilateral, then ______________________________ If a triangle is equiangular, then ______________________________

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