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Prove a quadrilateral with vertices G(1,-1), H(5,1), I(4,3), J(0,1) is a rectangle Parallelogram Method: Rectangle Method: I need help understanding how to prove it's a rectangle
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Prove a quadrilateral with vertices G(1,-1), H(5,1), I(4,3), J(0,1) is a rectangle

Parallelogram Method:
Rectangle Method:

I need help understanding how to prove it's a rectangle

User Ibrahim
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1 Answer

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If the diagonals of a parallelogram are congruent, then it's a rectangle .
User Fuhrmanator
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