Rectangle ABCDABCDA, B, C, D is graphed in the coordinate plane. The following are the vertices of the rectangle: A(2, 0)A(2,0)A, left parenthesis, 2, comma, 0, right parenthesis, B(6, 0)B(6,0)B, left parenthesis, 6, comma, 0, right parenthesis, C(6, 7)C(6,7)C, left parenthesis, 6, comma, 7, right parenthesis, and D(2, 7)D(2,7)D, left parenthesis, 2, comma, 7, right parenthesis. What is the area of rectangle ABCDABCDA, B, C, D? square units