Chapter 7: Congruence of Triangles

Questions

1. Which rule if $AB=DE, \angle A=\angle D, AC=DF$?
2. Are two isosceles triangles with same equal sides congruent?
3. In $\triangle ABC \cong \triangle XYZ$, if $\angle A=50^\circ$, find $\angle X$.
4. State SSS congruence rule.
5. Are two equilateral triangles with same side congruent?
6. State SAS rule.
7. If $\triangle ABC \cong \triangle DEF$, and $AB = 5$, find $DE$.
8. State RHS rule.
9. State ASA rule.
10. Congruent triangles have equal areas — T/F?

Extra Practice (Optional)

• State ASA rule in your words.
• Is AAS a valid congruence rule?
• Two right triangles with equal legs are congruent by which rule?