The area (in square units) of the quadrilateral ABCD, formed by the vertices A (0, -2), B (2, 1), C (0, 4), and D (-2, 1) is:A12B14C15D13Answer: A. 12 Read Explanation: 12Area =1/2[x1(y2−y3)+x2(y3−y1)+x3(y1−y2] Read more in App