1. Given a=(3,4) and b=(2,1), find the area of the triangle formed by a, b and the projection of b onto a.
ANS: 1 (note: bolded letters are all vectors)
2. Given a=(3,4) and b=(2,1), find the area of the triangle formed by a, b and the projection of a onto b.
ANS: 5
Can someone please explain...