✔ 5121317
512✔ 1317
5121317
x = [___]
34
455190102
45✔ 5190102
5✔ 1025102
ABAEAC
symmetric propertyaddition property✔ reflexive property
ADAB✔ BE
✔ SSSSASAAS
definition of right angles✔ definition of perpendiculardefinition of diagonal
Vertical angles are congruent.All right angles are congruent.Angles of a rhombus are congruent.Alternate interior angles are congruent.
transitive propertysubstitution property✔ reflexive propertysymmetric property
Opposite angles of a parallelogram are congruent.✔ Opposite sides of a parallelogram are congruent.Diagonals of a parallelogram are congruent.Diagonals of a parallelogram bisect each other.
parallelogram side theoremparallelogram diagonal theoremdefinition of parallelogram
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