There are 2 △s ABC and A'B'C'. The plotting for △ABC with vertices (0,3), (5,0), and (5,6) and △A'B'C' with (1,3), (4,1), and (4,5) is
Using vectors, find the area of the △ABC with vertices A(1, 2, 3), B (2, -1, 4) and C(4, 5, -1).
On a graph paper, plot the triangle ABC, whose vertices are at the points A (3, 1), B(5, 0) and C (7, 4).
On the same diagram, draw the image of the triangle ABC under reflection in the origin O (0, 0).