Learning Path for If Diagonals Congreuent Then Isosceles Trapezoid

The following is a list of all proofs that are used to prove either If Diagonals Congreuent Then Isosceles Trapezoid or its ancestor proofs.

Add Two 90

Subtract Both Sides 2

Add Term to Both Sides 7

Transitive Property of Equality Variation 2

Collinear Points Theorem

Supplementary Angles Theorem (Converse)

Transitive Property of Equality Variation 1

Angle Symmetry Example 2

Distance Property 2

Distance Property 1

Subtract Both Sides

Add Term to Both Sides 6

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 3

Consecutive 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

If Parallelogram Then Sides Congruent B

If Parallelogram Then Sides Congruent B2

Distance Property 3

Angle Swap

Commutative Property Example 2

Commutative Property Variation 1

Term 2 Substitution

Substitution 8

Subtraction Example 2

Add Number to Both Sides

Add Number to Both Sides 2

Congruent Triangles to Distance 3

Transitive Property Application 2

Angles of an Isosceles Triangle

Angle Symmetry 2

Isosceles Triangle B

Propagated Transitive Property 3

Angle Symmetry B

Substitution Example 10

Substitute First Term

Triangles Sum to 180

Equality Example

Third Angle Theorem

Angle Angle Side Triangle

Angle Angle Side Triangle 2

Congruent Triangle Transitive Property

Hypothenuse-Leg (HL) Theorem

Collinear Points

If Diagonals Congreuent Then Isosceles Trapezoid

Start Path