The vertices of a triangle ABC are A(0,0) , B(2,-1) and C(9,2). Evaluate cosB

The vertices of a triangle ABC are A(0,0),B(2,-1) and C(9,2). Evaluate cos B

The vertices of a triangle ABC are A(0, 0), B(2, -1) and C(9, 2) , find cos B .

The vertices of a triangle ABC are A(0, 0), B(2, -1) and C(9, 2) , find cos B .

If the vertices of a triangle A, B, C are A(0, 0), B(2, 1), C(9, -2) then cosB =

The vertices of a triangle ABC are A (2,3,1) , B(-2, 2,0), and C(0,1,-1). What is the cosine of angle ABC ?

The vertices of the triangle ABC are A(1, 2), B (0, 0) and C (2, 3), then the greatest angle of the triangle is

The coordinates of the vertices A, B and C of a triangle ABC are (0,5), (-1,-2) and (11,7) respectively . Find the coordinates of the foot of the perpendicular from B on AC.

The vertices of Delta ABC are A(2,4) B(-4, 2) and C(0,0). Find the slopes of AC and AB.