9-4: TEKS Practice

  • 1. Given ΔQRS≅ΔQRS′, describe a pair of rigid motions that maps ΔQRS to ΔQRS′.

    A graph of triangles QRS and Q´R´S´.

    • A. reflection across the y-axis, translation of 6 units down

    • B. rotation of 90° about the origin, translation of 6 units up

    • C. reflection across the y-axis, translation of 10 units down

    • D. translation of 10 units right, translation of 6 units down

  • 2. ABCD is a square. Given ABCD≅ABCD′, describe a sequence of rigid motions that maps ABCD to ABCD′.

    A graph of squares ABCD and A´B´C´D´.

  • 3. Is ΔDEF≅ΔDEF′? Explain.

    A graph of triangles DEF and D´E´F´.

  • 4. Which two triangles are congruent?

    A graph of four triangles.

  • 5.  

    • a. Writing Given ΔDEF≅ΔDEF′, describe a pair of rigid motions that maps ΔDEF to ΔDEF′.

      A graph of triangles DEF and D´E´F´.

    • b. Describe a way you can show that ΔDEF is identical to ΔDEF


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Table of Contents

Digits, Grade 8, Volume 2, Homework Helper Unit D: Two-Dimensional Shapes Unit E: Measurement and Data Unit F: Personal Financial Literacy Unit G: Step-Up Lessons English/Spanish Glossary Formulas Math Symbols Formulas Measures Properties