4-5 Isosceles and Equilateral Triangles

4-5 Isosceles and Equilateral Triangles - measures 60...

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Isosceles and Equilateral Triangles Section 4-5
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Isosceles Triangle Theorem (4-3) If 2 sides of a triangle are congruent, then the angles opposite those sides are congruent. 8 8 50 50
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Converse of Isosceles Triangle Thm. (4-4) If 2 angles of a triangle are congruent, then the sides opposite those angles are congruent.
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Corollaries 4.3 and 4.4 A triangle is equilateral if and only if it is equiangular. Each angle of an equilateral triangle
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Unformatted text preview: measures 60 degrees. 12 12 12 60 60 60 Parts of an Isosceles Triangle leg leg base vertex angle base angles Theorem 4-5 The bisector of the vertex angle of an isosceles triangle is the perpendicular bisector of the base Joke Time Who was the first math student? Add-em Why isnt your nose 12 inches long? Because then it would be a foot...
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4-5 Isosceles and Equilateral Triangles - measures 60...

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