How many triangles with positive area have all their vertices at points (i, j) in the coordinate plane, where i and j are integers between 1 and 5 , inclusive?
Answer Choices
A. 2128
B. 2148
C. 2160
D. 2200
E. 2300
How many triangles with positive area have all their vertices at points (i, j) in the coordinate plane, where i and j are integers between 1 and 5 , inclusive?
Answer Choices
A. 2128
B. 2148
C. 2160
D. 2200
E. 2300