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# Mar 1 congruent triangles activity

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A powerpoint for students to store the results of the their investigations using the gizmo "Proving Triangles Congruent" at www.explorelearning.com.

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### Mar 1 congruent triangles activity

1. 1. Congruent triangles
2. 2. Use the gizmo to investigate:• For each slide, indicate whether or not two triangles are definitely congruent, or not necessarily congruent, under the given conditions, by highlighting either “definitely” or “not necessarily” on the slide• If you choose “definitely”, paste several snapshots from the gizmo to support that• If you choose “not necessarily”, paste one snapshot from the gizmo to support that
3. 3. When two triangles have exactly one angle incommon, they are (definitely, not necessarily) congruent
4. 4. When two triangles have exactly two angles incommon, they are (definitely, not necessarily) congruent
5. 5. When two triangles have exactly three angles incommon, they are (definitely, not necessarily) congruent
6. 6. When two triangles have exactly one side incommon, they are (definitely, not necessarily) congruent
7. 7. When two triangles have exactly two sides incommon, they are (definitely, not necessarily) congruent
8. 8. When two triangles have three sides in common, they are (definitely, not necessarily) congruent
9. 9. When two triangles have exactly one side and one angle in common, and the angle is adjacent to theside, they are (definitely, not necessarily) congruent
10. 10. When two triangles have exactly two sides and one angle in common, and the angle is not between thesides, they are (definitely, not necessarily) congruent
11. 11. When two triangles have exactly two sides and one angle in common, and the angle is between thesides, they are (definitely, not necessarily) congruent
12. 12. When two triangles have exactly two angles and one side in common, and the side is not between theangles, they are (definitely, not necessarily) congruent
13. 13. When two triangles have exactly two angles and one side in common, and the side is between theangles, they are (definitely, not necessarily) congruent