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4-5 Warm-Up

4-5 Warm-Up. p.139 # 34. A. E. F. D. C. B. Triangle ABC is equilateral. How do you know triangle DEF is also equilateral?. Warm-Up. C. F. Given:. E. B. D. A. Prove:. Other methods of Proving Triangles Congruent. Theorem 4-3: AAS Theorem

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4-5 Warm-Up

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  1. 4-5 Warm-Up p.139 # 34 A E F D C B Triangle ABC is equilateral. How do you know triangle DEF is also equilateral?

  2. Warm-Up C F Given: E B D A Prove:

  3. Other methods of Proving Triangles Congruent Theorem 4-3: 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.

  4. Hypotenuse: The side opposite the right angle in a right triangle. hypotenuse leg leg Theorem 4-4: HL Theorem If the hypotenuse and a leg of one right triangle are congruent to the corresponding parts of another right triangle, then the triangles are congruent.

  5. X Given: 1 2 Prove: 3 4 B A Y

  6. P Given: 3 5 6 4 Prove: Q T 1 2 R S

  7. HW: p. 143-145 #1-19 odd skip # 9

  8. U O T 2 1 A D B C Given: Prove:

  9. A B E F C D G ABCDE is a regular pentagon and DEFG is a square. Find: angles EAF, AFD, DAF

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