Given:
Quadrilateral ABCD.
Aim:
We need to prove that the quadrilateral ABCD is a rectangle.
Explanation:
Consider the quadrilateral ABCD.
This shape ABCD is quadrilateral . Because ABCD has 4 sides.
Every angle is a right angle that is 90 degrees.
AB and CD are parallel and of equal length.
AD and CB are parallel and of equal length.
The opposite sides are parallel and of equal length.
The quadrilateral ABCD has all property of the rectangle.
Hence quadrilateral ABCD is a rectangle.
