Area of Rectangles and Triangles

Move the points (ABCD) to match the points given. Fill out the corresponding areas on the Geogebra Worksheet. A: (0,0) B: (0,2) C: (2,2) D: (2,0) A: (0,0) B: (0,4) C: (3,4) D: (3,0) A: (0,0) B: (0,2) C: (5,2) D: (5,0) A: (0,0) B: (0,6) C: (1,6) D: (1,0)
What did you notice about the area of BCA (Triangle) in reference to the area of ABCD (Rectangle)? What do you think is the area of a triangle? Move the points different any points you would like and see what you notice.