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This chapter focuses on understanding and proving the congruence of triangles by identifying all corresponding congruent parts. We demonstrate how to show that two polygons are congruent using congruence statements and the concept of CPCTC (Corresponding Parts of Congruent Triangles are Congruent). Through problem-solving, including finding missing values and applying the Third Angles Theorem, we enhance comprehension of triangle congruence in geometric figures, using real-world applications such as architectural designs.
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Chapter 4.3 Congruent Triangles
Angles: Sides: Identify Corresponding Congruent Parts Show that the polygons are congruent by identifying all of the congruent corresponding parts. Then write a congruence statement. Answer: All corresponding parts of the two polygons are congruent. Therefore, ABCDE RTPSQ.
CPCTC • Congruent parts of congruent triangles are congruent
A. B. C. D. The support beams on the fence form congruent triangles. In the figure ΔABC ΔDEF,which of the following congruence statements correctly identifies corresponding angles or sides?
Use Corresponding Parts of Congruent Triangles In the diagram, ΔITP ΔNGO. Find the values of x and y. O P CPCTC
In the diagram, ΔFHJ ΔHFG. Find the values of x and y. A.x = 4.5, y = 2.75 B.x = 2.75, y = 4.5 C.x = 1.8, y = 19 D.x = 4.5, y = 5.5
Use the Third Angles Theorem ARCHITECTURE A drawing of a tower’s roof is composed of congruent triangles all converging at a point at the top. If IJK IKJ and mIJK = 72, find mJIH.
Prove That Two Triangles are Congruent Write a two-column proof. Prove:ΔLMNΔPON