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Chapter 4.6

Chapter 4.6. Isosceles and Equilateral Triangles. Concept. ___.  BCA is opposite BA and  A is opposite BC , so  BCA   A . . ___. Congruent Segments and Angles. A. Name two unmarked congruent angles. Answer:  BCA and  A. ___.

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Chapter 4.6

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  1. Chapter 4.6 Isosceles and Equilateral Triangles

  2. Concept

  3. ___ BCA is opposite BA and A is opposite BC, so BCA  A. ___ Congruent Segments and Angles A. Name two unmarked congruent angles. Answer: BCAand A

  4. ___ BC is opposite D and BD is opposite BCD, so BC  BD. ___ ___ ___ ___ Answer: BC BD Congruent Segments and Angles B. Name two unmarked congruent segments.

  5. A. Which statement correctly names two congruent angles? A.PJM PMJ B.JMK JKM C.KJP JKP D.PML PLK

  6. A.JP PL B.PM PJ C.JK MK D.PM PK B. Which statement correctly names two congruent segments?

  7. Concept

  8. Find Missing Measures A. Find mR. Triangle Sum Theorem mQ = 60, mP = mR Simplify. Subtract 60 from each side. Answer:mR = 60 Divide each side by 2.

  9. Find Missing Measures B. Find PR. Answer:PR = 5 cm

  10. Example 2a A. Find mT. A. 30° B. 45° C. 60° D. 65°

  11. B. Find TS. A. 1.5 B. 3.5 C. 4 D. 7

  12. Find Missing Values ALGEBRA Find the value of each variable.

  13. Find the value of each variable. A.x = 20, y = 8 B.x = 20, y = 7 C.x = 30, y = 8 D.x = 30, y = 7

  14. Given:HEXAGO is a regular polygon. ΔONG is equilateral, N is the midpoint of GE, and EX || OG. Prove:ΔENX is equilateral. ___ Apply Triangle Congruence

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