How many diagonals are there in a quadrilateral


Asked by admin @ in Math viewed by 292 People


A quadrilateral has how many diagonals

Answered by admin @



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


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