Consider the five points comprising of the vertices of a square and the intersection point of its diagonals. How many triangles can be formed using these points? |
Consider the five points comprising of the vertices of a square and the intersection point of its diagonals. How many triangles can be formed using these points? |
(8) To form a triangle, 3 points out of 5 can be chosen in ways But of these, the three points lying on the 2 diagonals will be collinear So triangles can be formed |