Question

How many diagonal does of the following have A convex quadrilateral .

Answer 1

An n-sided convex polygon has  \[\frac{n(n - 3)}{2}\]  diagonals. 

A quadrilateral has \[\frac{4(4 - 3)}{2} = 2\] diagonals. 

There are 2 diagonals in the convex quadrilateral.