8:19

Two-Column Proof Practice II

21:03

Geometry - CPCTC (proofs)

20:28

Detour Proofs - Double Triangle Congruence

25:30

Reasoning and Two-Column Proofs

11:21

Master writing a two column proof using segment addition theorem

20:49

Geometry 1-7: Writing Proofs

7:37

Two-Column Proof Practice III

25:56

Proving Congruent Triangles by Flowchart and T-Table