Proving Rectangles

Graph Quadrilateral ABCD with vertices A(-1,2), B(0,-1), C(6,1), and D(5,4)
What evidence do you have that this is or isn't a parallelogram?
What evidence do you have that this is or isn't a rectangle?
Graph Quadrilateral ABCD with vertices A(1,5), B(3,6), C(6,2), and D(4,1)
Is this shape graphed above a Quadrilateral?[br]Is it a Parallelogram?[br]Is it a Rectangle?[br]SHOW YOUR WORK!
Graph Quadrilateral ABCD with vertices A(-6,0), B(-5,3), C(1,1), and D(0,-2)
Is this shape graphed above a Quadrilateral?[br]Is it a Parallelogram?[br]Is it a Rectangle?[br]SHOW YOUR WORK!
Close
– MrCarmack

Information: Proving Rectangles