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Published bySharon Heath Modified over 4 years ago

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Chapter 4: Congruent Triangles Lesson 1: Classifying Triangles

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Classifying Triangle by Angles Acute Triangle: all of the angles are acute Obtuse Triangle: one angle is obtuse, the other two are acute Right Triangle: one angle is right, the other two are acute Equiangular Triangle: all the angles are 60 degrees

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Classifying Triangles by Sides Scalene Triangle: all sides are different measures Isosceles Triangle: at least two sides have the same measure Equilateral Triangle: all sides have the same measure 3 5 7 * vertex angle= formed by the two congruent sides of an isosceles triangle * base= the side of an isosceles triangle not congruent to the others

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If point Y is the midpoint of VX, and WY = 3.0 units, classify ΔVWY as equilateral, isosceles, or scalene. Explain your reasoning.

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ALGEBRA Find the measure of the sides of isosceles triangle KLM with base KL. __

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ALGEBRA Find x and the measure of each side of equilateral triangle ABC if AB = 6x – 8, BC = 7 + x, and AC = 13 – x.

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Find the measure of each side of Triangle JKL and classify the triangle based on its sides. J(-3, 2) K(2, 1) L(-2, -3)

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Find y ___

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