Learning Path for Altitudes Isosceles

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

Transitive Property of Equality Variation 2

Distance Property 1

Distance Property 2

Distance Property 3

Angle Symmetry Example 2

Collinear Angles Property 9

Transitive Property Application 2

Angles of an Isosceles Triangle

Angle Symmetry Example

Angle Symmetry 2

Isosceles Triangle 2

Transitive Property of Equality Variation 1

Perpendicular to Angle

Collinear Points Theorem

Subtract Both Sides

Add Term to Both Sides 6

Subtract Both Sides 2

Add Term to Both Sides 7

Vertical Angles

Angle Addition Theorem

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

Commutative Property Example 2

Commutative Property Variation 1

Term 2 Substitution

Angle Symmetry B

Substitution Example 10

Substitute First Term

Triangles Sum to 180

Equality Example

Third Angle Theorem

Angle Angle Side Triangle

Altitudes Isosceles