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Mathematics 20 Online
OpenStudy (anonymous):

Heelp-Geometry

OpenStudy (anonymous):

The figure below shows a rhombus ABCD.

OpenStudy (anonymous):

The following flowchart was drawn to prove that the diagonals of a rhombus are perpendicular.

OpenStudy (anonymous):

Which is the missing reasoning in the flowchart?

OpenStudy (anonymous):

alternate interior angles in a triangle are congruent corresponding angles of congruent triangles are congruent vertical angles in a triangle are congruent a pair of supplementary angles are congruent

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