Triangle Congruence Unit Review
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Questions and Answers

Which pair of triangles can be proven congruent by the HL theorem?

  • Option 2
  • Option 3 (correct)
  • Option 4
  • Option 1
  • What is the missing reason in the proof that ΔRST ≅ ΔVST?

    A

    Which rigid transformation would map ΔABC to ΔEDC?

  • Option 3
  • Option 2
  • Option 1
  • Option 4 (correct)
  • Which single rigid transformation is required to map ΔDEF onto ΔD'EF'?

    <p>Option 3</p> Signup and view all the answers

    Which pair of triangles can be proven congruent by SAS?

    <p>Option 2</p> Signup and view all the answers

    How can ΔABC be mapped to ΔXYZ? First, translate ______________.

    <p>B</p> Signup and view all the answers

    Which rigid transformation would map ΔABC to ΔABF?

    <p>Option 3</p> Signup and view all the answers

    To prove that triangles FHG and KJG are congruent by ASA, which statement and reason could be used as part of the proof?

    <p>A</p> Signup and view all the answers

    Is ΔWXZ ≅ ΔYZX? Why or why not?

    <p>A</p> Signup and view all the answers

    Could ΔABC be congruent to ΔADC by SSS? Explain.

    <p>B</p> Signup and view all the answers

    What are the rigid transformations that will map ΔABC to ΔDEF?

    <p>Option 4</p> Signup and view all the answers

    Which statement and reason would be included in Roberto's proof that was not included in Nessa's proof?

    <p>A</p> Signup and view all the answers

    Study Notes

    Triangle Congruence Theorems

    • HL (Hypotenuse-Leg) theorem can prove congruence for right triangles with matching hypotenuse and one leg.
    • SAS (Side-Angle-Side) theorem proves congruence with two sides and the included angle matching.
    • SSS (Side-Side-Side) theorem establishes congruence by comparing all three corresponding sides.

    Rigid Transformations

    • Rigid transformations include translations, rotations, and reflections, which maintain shape and size during movement.
    • Specific transformations can map one triangle onto another, indicating congruence.
    • Triangle mapping examples illustrate how to align triangles through a combination of transformations.

    Triangle Proofs

    • Proofs often involve given conditions, such as parallel lines or congruent sides to validate triangle congruence.
    • ASA (Angle-Side-Angle) and AAS (Angle-Angle-Side) can also establish triangle congruence effectively.
    • Additional statements in proof formulations can help establish relationships not covered in previous arguments.

    Compatibility of Triangles

    • Determining congruence involves assessing matching sides and angles carefully.
    • Situations where triangles cannot be congruent must be explained clearly, focusing on the discrepancies in side or angle measures.

    Practical Applications

    • Consider each theorem and transformation when exploring triangle relationships in geometric problems.
    • Familiarity with proof structures enhances one’s ability to demonstrate congruence logically and effectively.

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    Description

    Test your understanding of triangle congruence with this review quiz. Covering the HL theorem, proofs, and rigid transformations, you'll strengthen your grasp on important geometric concepts. Perfect for students preparing for exams on this topic.

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