Sagot :
Answer: 35
Collinear can be formed by joining any three non-collinear points in pairs. there are 7 non-collinear points. The number of triangles formed
7C3
7*[7-1]*[7-2] / 3
7*6*5/ 3*2*1 = 7*5= 35
Answer: 35
Collinear can be formed by joining any three non-collinear points in pairs. there are 7 non-collinear points. The number of triangles formed
7C3
7*[7-1]*[7-2] / 3
7*6*5/ 3*2*1 = 7*5= 35