Learning Path for If Parallelogram Diagonal Then Congruent Triangles

The following is a list of all proofs that are used to prove either If Parallelogram Diagonal Then Congruent Triangles or its ancestor proofs.

Transitive Property of Equality Variation 2

Angle Symmetry Example 2

Distance Property 2

Distance Property 1

Collinear Points Theorem

Subtract Both Sides

Add Term to Both Sides 6

Subtract Both Sides 2

Add Term to Both Sides 7

Transitive Property of Equality Variation 1

Vertical Angles

Angle Addition Theorem

Collinear Angles Property 9

Collinear Angles B

Exterior Angle is Greater

Exterior Angle B

Collinear Angles Property 10

Collinear Angles Property 3

Collinear Angles Property 3 B

Collinear Angles Property 3 C

Alternate Interior Angles Theorem

Alternate Interior Angles Theorem (Converse)

Alternate Interior Angles Theorem (Converse) 2

Alternate Interior Angles Theorem (Converse) 6

Angle Symmetry 4

Angle Symmetry Example

If Parallelogram Diagonal Then Congruent Triangles