Transitive Property of Equality Variation 2

Sides of an Equilateral Triangle

Sides of an Equilateral Triangle 2

Distance Property 1

Angle Symmetry Example 2

Collinear Angles Property 9

Transitive Property Application 2

Angles of an Isosceles Triangle

Angles of an Isosceles Triangle 5

Angles of an Equilateral Triangle

Proof: Distance Property 1

Let's prove the following theorem:

if distance AB = x, then distance BA = x

Proof:

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Given

1	distance AB = x

Proof Table

#	Claim	Reason
1	distance AB = distance BA	distance AB = distance BA (Distance Equality Property)
2	distance BA = x	if distance AB = distance BA and distance AB = x, then distance BA = x (Transitive Property of Equality Variation 2)

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