Download GE0403C1

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✔ Checkpoint Quiz 1
Use with Lessons 4-1 through 4-3.
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7. LMN TQR. List the three pairs of congruent corresponding
sides and the three pairs of corresponding angles.
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Use the information given in the diagram. Tell why each statement is true.
8. 1 4
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9. 2 3
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10. ABD CDB
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© Pearson Education, Inc., publishing as Pearson Prentice Hall.
✔ Checkpoint Quiz 2
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Use with Lessons 4-4 through 4-6.
1. List the isosceles triangles in the diagram.
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2. Why are these triangles congruent?
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3. Explain why MN ON.
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4. In the diagram, TRQ RTS by SAS. What other pairs of
sides and angles can you conclude are congruent by CPCTC?
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5. Complete the Plan for Proof.
Given: AD bisects BAC and BDC; Prove: ABC is an isosceles triangle.
Plan: Because AD bisects BAC and BDC, BAD CAD
and CDA BDA by a. 9 AD AD by b. 9 Property.
So, ABD ACD by c. 9 Theorem and AB AC by d. 9.
Hence, ABC is an isosceles triangle by e. 9.
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State the postulate or theorem that proves that the triangles are congruent.
If the triangles cannot be proven congruent, write not possible.
Checkpoint Quizzes
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Geometry Chapter 4