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Congruent Triangles Quiz – Geometry (10 Questions)

Last updated: October 22, 2026 · Written by the Math Made Easy math teachers

Geometry Math Quizzes – Mathbot, the Math Made Easy robot coach, with free printable quizzes for Geometry

Looking for a congruent triangles quiz? Then this Geometry quiz on Proving Triangles Congruent: SSS to HL asks 10 multiple-choice questions with instant feedback. Ten multiple-choice questions check congruence criteria, corresponding parts and CPCTC. Choose the best answer and read the explanations to see the typical mistakes.

Standards: G-CO.B.6, G-CO.B.7, G-CO.B.8, G-SRT.B.5 · Level: Grade 10 Geometry

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What this Proving Triangles Congruent: SSS to HL quiz checks

  • Congruent triangles have three pairs of congruent sides and three pairs of congruent angles.
  • Valid criteria: SSS, SAS, ASA, AAS and HL for right triangles.
  • SSA can describe two different triangles, so it does not prove congruence.
  • CPCTC lets you conclude that remaining corresponding parts are congruent.
  • A shared side is congruent to itself by the Reflexive Property.

The 10 questions of the quiz

  1. Which criterion proves these triangles congruent?
  2. Which set of matching parts does NOT prove two triangles congruent?
  3. In congruent triangles, what can be concluded by CPCTC?
  4. △ABC ≅ △DEF. Which side is congruent to AC?
  5. Two right triangles have hypotenuses of 17 and legs of 8. Which criterion proves them congruent?
  6. Which criterion do the marks show?
  7. Two triangles share a side. What justifies that this side is congruent to itself?
  8. △ABC ≅ △DEF, with m∠A = 52° and m∠B = 71°. What is m∠F?
  9. Two triangles have three pairs of congruent angles. What can be concluded?
  10. Which statement defines congruent triangles using transformations?

After the quiz

Missed a question? Reread the Proving Triangles Congruent: SSS to HL lesson, then take the quiz again. Next, solve the Geometry worksheet on Proving Triangles Congruent: SSS to HL, one star first, then two and three stars. Finally, take the chapter test under real conditions, without notes and with a timer.

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