There are 10 points in a given plane, no three of which are on the same line. If one of the points is represented as 'A', then how many triangles can be determined with the 10 points that contain the point A? Choose the correct choice from the following choices:
A) 36  B) 105  C) 182  D) 210  E) 455
Any 2 points out 9 points will create triangle with third point A, so the answer is 9C2=36.   36nswer: 36.
<result>A</result>
There are 10 points in a given plane, no three of which are on the same line. If one of the points is represented as 'A', then how many triangles can be determined with the 10 points that contain the point A?