Question

Show that the points( 2,3) ( 5,-4) ( 6,-4 )and( 4,-1)

Answer 1

Show that the points (-2, 6), (5, 3), (-l , -l l) and (-8, -8) are the vertices of a rectangle.
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Let A(-2,6), B(5,3), C(-1,-11) and D(-8,-8) are the vertices of a rectangle . Since the opposite sides and the diagonals are equal ABCD is a rectangle.