Question

A quadrilateral has how many diagonals

Answer 1

The number of diagonals in a polygon = n(n-3)/2, where n is the number of polygon sides. 
Therefore, number of diagonals in quadrilateral = 4(4 -1)/2
                                                                                 = 4*1/2 = 2

Answer 2

Answer:

• 2 diagonals are there in a quadrilateral