Learning Path for Similar Corresponding Altitudes

The following is a list of all proofs that are used to prove either Similar Corresponding Altitudes or its ancestor proofs.

Transitive Property of Equality Variation 2
Collinear Angles Property 10
Collinear Angles Property 3
Transitive Property Application 2
Two Collinear Angles
Transitive Property of Equality Variation 1
Angle Symmetry Example
Angle Symmetry 2
Similar Triangles Theorem
Similar Corresponding Altitudes
Start Path