Question

If the diagonals of a parallelogram are equal, then show that it is a rectangle​

Answer 1

Answer:

show the vertex angle 90 so naturally it become a rectangle

Answer 2

Answer:

If the diagonals of a parallelogram becomes equal then the co-interior angle will also become equal and this will result to the formation of 90 degree angle as the sum of co interior angles is 180 and if both the angles are equal then the one will measure 90 degree then the all of the angle will measure 90 degree then it will form a rectangle as the as in rectangle all the opposite sides are equal and parallel and each angle measures 90°