Question 76
We are given a triangle with an additional two points on each side. So in total, there are nine points (see figure).
We want to choose three of the nine points that are not on one line. For example, we could choose (1) the three vertices of the triangle, or (2) the left vertex and the two additional points on the opposite side.
How many possible choices are there in total, including the two examples given?
We want to choose three of the nine points that are not on one line. For example, we could choose (1) the three vertices of the triangle, or (2) the left vertex and the two additional points on the opposite side.
How many possible choices are there in total, including the two examples given?