6 Base angles of an isosceles triangle The angle included by the legs is called

6 base angles of an isosceles triangle the angle

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6 Base angles of an isosceles triangle The angle included by the legs is called the vertex angle and the angles that have the base as one of their sides are called base angles. 7 Base of an isosceles triangle There are two sides that are legs and the third side is the non-congruent side of the triangle. III. Cornell Notes: Unit 4 Right Triangles and trigonome try Essential Question: How to tell when a triangle is a right triangle using trigonometry. Date: 11-25-18 Unit Objectives: This unit covers concepts associated with congruent triangles, such as identifying corresponding parts of congruent triangles, identifying isosceles and equilateral triangles, proving triangles congruent, and proving parts of triangles congruent Lesson Lesson Objective Notes: Lesson 1 Recognize congruent figures and their corresponding parts Lesson _2___ Prove two triangles are congruent using the SSS postulates. Side Side Side ( SSS ): If the three sides of both triangles are congruent then both triangles are congruent . Side Angle Side 2 Prove two triangles are congruent using the SAS postulates. (SAS ): If two sides and the included angle of both triangles are congruent then both triangles are congruent .
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3 Prove two triangles are congruent using the ASA postulate. The ASA ( Angle-Side-Angle ) postulate states that if two angles and the included side of one triangle are congruent to two angles and the included side of another triangle , then the triangles are congruent. 3 Prove two triangles are congruent using the AAS theorem. If two angles and a non-included side of one triangle are congruent to the corresponding parts of another triangle, then the triangles are congruent.
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