Question

If all possible diagonals from a vertex of an 'n' sided polygon be drawn, then the number of triangles thus formed is

• A. $n+1$
• B. n
• C. $n-1$
• D. $n-2$

Answer 1

The correct option is D $n-2$

In the case of polygon, the formula for the number of triangles in a polygon will be, number of triangles $=n-2$

Where $n$ is the number of sides.