[" The wertics of "Delta" as "c" an "(1,2,3),B(-1,0,0)],[" and "c(0,1,1,2)" .Find it aner."]

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

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 A,B, C of a triangle ABC are (1,2,3),(-1, 0,0), (0, 1,2), respectively, then find angle ABC .

If the position vectors of the vertices a, B and C of a Triangle ABC be (1, 2, 3), (-1, 0, 0) and (0, 1, 2) respectively then find angleABC .

If the vertices A,B,C of a triangle ABC are (1,2,3),(-1,0,0) ,(0,1,2) , respectively, then find angleABC .

If the vertices A,B,C of a triangle ABC are (1,2,3),(-1,0,0) ,(0,1,2) , respectively, then find angleABC .

If the vertices A,B,C of a triangle ABC are (1,2,3),(-1,0,0) ,(0,1,2) , respectively, then find angleABC .

If the vertices A,B,C of a triangle ABC are (1,2,3),(-1,0,0),(0,1,2)respectively,then find /_ABC.

Consider the triangle ABC with vertices A(1,2,3) , B(-1, 0, 4) and C(0, 1, 2) (a) Find vec (AB) and vec (AC) Find angle A . (c) Find the area of triangle ABC.