Prove a quadrilateral with vertices G(1,1), H(5,3) and J(0,3) is a rectangle

Prove A Quadrilateral With Vertices G11 H53 And J03 Is A Rectangle class=

Answer :

The quadrilateral is a rectangle because

1) GH is parallel and equal to JI

2) GJ is parallel and equal to HI

3) Angles at the vertices are perpendicular

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