Question

Quadrilateral

Answer 1

find slope of AB, Slope of CD. they will be found to be equal.

Also on finding AB, CD length using the distance formula, they will be equal.

Since slopes of AB,CD are equal, we can conclude that they are parallel.

Hence one pair of opposite sides are equal and parallel>

conclusion - ABCD is a parallelogram.

You can easily find that AB = CD and AC = BD but AB Not equal to AC .

Hence ABCD is not a rhombus.

Answer 2

lot of thanks