15 multiple choice questions to test your understanding.
See answers immediately after selecting
Q1. What is the symbol for 'is congruent to'?
Q2. If △ABC ≅ △PQR, which side corresponds to AB?
Q3. Which of the following is a valid congruence criterion?
Q4. In △ABC and △XYZ: AB = XY, BC = YZ, CA = ZX. By which criterion are they congruent?
Q5. What does SAS criterion require?
Q6. If △PQR ≅ △LMN by RHS criterion, what can you conclude?
Q7. △ABC has AB = 6, BC = 8, ∠B = 90°. △PQR has PQ = 6, QR = 8, ∠Q = 90°. By which criterion are they congruent?
Q8. What is CPCT?
Q9. If △DEF ≅ △GHI by ASA, what can you immediately conclude without calculating?
Q10. Which statement about congruent triangles is false?
Q11. Right △ABC (∠A = 90°) has hypotenuse BC = 13 cm and side AB = 5 cm. Right △XYZ (∠X = 90°) has hypotenuse YZ = 13 cm and side XY = 5 cm. Are they congruent?
Q12. If △PQR ≅ △ABC and AB = 7 cm, what is PQ?
Q13. In △LMN and △OPQ: LM = OP, ∠L = ∠O, LN = OQ. By which criterion are they congruent?
Q14. SSA criterion fails to prove congruence because:
Q15. If △ABC ≅ △DEF by SSS, and ∠A = 40°, what is ∠D?