there are 7 non - collinear points . how many triangles can be drawn by joining these points ?
explanation : a triangle is formed by joining any three non - collinear points in pairs . there are 7 non - collinear points the number of triangles formed = \ inline { \ color { black } 7 c _ { 3 } } = 35 answer : c ) 35
multiply(7, add(const_4, const_1))