eBook
Mathigon

Mathigon: Geometry: Triangles and Trigonometry: Triangles Congruence

For Students 9th - 10th Standards
This lesson focuses on triangle congruence; it shows the ways to prove that triangles are congruent.
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Asa and Aas Triangle Congruence

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] This concept introduces students to the ASA and AAS Triangle Congruence shortcuts. Students examine guided notes, review guided practice, watch instructional videos...
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Sss Triangle Congruence

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] Prove two triangles are congruent with the Side-Side-Side shortcut.
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Aa Similarity

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] Use the AA Similarity Postulate to determine if triangles are similar.
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Aa Similarity (Intermediate)

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] This concept teaches students how to identify whether or not two triangles are similar using AA Similarity.