I draw a quadrilateral and then draw all its diagonals. How many triangles can I find?
3
2
8
1
The triangles are- ABD, CBD, ABC, DCA, AED, CED, BEC, AEB
Therefore, there are 8 triangles in the figure.
If I draw a quadrilateral and then draw all its diagonals. How many triangles will I find?
If I have a quadrilateral PQRS, how many triangles are there in the quadrilateral in which I must have one of the diagonals as a side.