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This worksheet requires identifying which triangle congruence postulate or theorem can be used to prove that each pair of triangles is congruent. Let’s go through each problem with the likely applicable postulate or theorem:

1. **SSS (Side-Side-Side)**: Triangle congruence can be shown by three pairs of corresponding sides being equal.
2. **SSS (Side-Side-Side)**: Three pairs of sides are marked congruent.
3. **ASA (Angle-Side-Angle)**: Two pairs of angles and the included side are congruent.
4. **SAS (Side-Angle-Side)**: Two pairs of sides and the included angle are congruent.
5. **ASA (Angle-Side-Angle)**: Two pairs of angles and the included side are congruent.
6. **AAS (Angle-Angle-Side)**: Two pairs of angles and a non-included side are congruent.
7. **SAS (Side-Angle-Side)**: Two sides and the included angle are congruent.
8. **ASA (Angle-Side-Angle)**: Two pairs of angles and the included side are congruent.
9. **SSS (Side-Side-Side)**: Three pairs of sides are marked congruent.
10. **AAS (Angle-Angle-Side)**: Two pairs of angles and a non-included side are congruent.
11. **ASA (Angle-Side-Angle)**: Two pairs of angles and the included side are congruent.
12. **SSS (Side-Side-Side)**: Three pairs of sides are congruent.

Would you like a detailed explanation of each problem? 

### Related Questions:
1. How does the Side-Angle-Side (SAS) postulate differ from the Angle-Side-Angle (ASA) postulate?
2. Why can't AAA (Angle-Angle-Angle) prove triangle congruence?
3. How can you verify the AAS (Angle-Angle-Side) theorem with examples?
4. What role do shared sides play in proving congruence in triangles?
5. How would you approach proving congruence if only two sides and no angles are marked?

### Tip:
When using these postulates, remember that the "included" angle or side is the one that directly connects the two known sides or angles.

For each pair of triangles, state the postulate or theorem that can be used to conclude that the triangles are congruent.

This worksheet helps students identify the correct triangle congruence postulates or theorems, such as SSS, SAS, ASA, and AAS, to conclude congruence of triangle pairs. Ideal for students in Grades 8-10 studying geometry.

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