Find the area of the quadrilateral `A B C D` having vertices `A(1,1),B(7,-3),C(12 ,2),` and `D(7, 21)dot`

Find the area of the quadrilateral ABCD having vertices underset A(1,1),B(7,B(7,-3),C(12,2), and D(7,21)

Find the area of the quadrilateral ABCD whose vertices are A(1, 1), B(7,-3), C(12, 2), and D(7, 21).

Find the area of the quadrilateral ABCD whose vertices are respectively A(1,1),B(7,-3),C(12,2) and D(7,21)

Find area at the quadrilateral ABCD with vertices A(1, 1), B(7, -3), C(12, 2) and D(7, 21) .

If the area of the quadrilateral ABCD whose vertices are A(1, 1), B(7, -3), C(12, 2) and D(7, 21) is Delta . Find the sum of the digits of Delta .

If the area of the quadrilateral ABCD whose vertices are A(1, 1), B(7, -3), C(12, 2) and D(7, 21) is Delta . Find the sum of the digits of Delta .

If the area of the quadrilateral ABCD whose vertices are A(1, 1), B(7, -3), C(12, 2) and D(7, 21) is Delta . Find the sum of the digits of Delta .

Find the area of the quadrilateral ABCD whose vertices are A(1,0),B(5,3),C(2,7) and D(-2,4)

Find the area of the quadrilateral whose vertices are A(2,1),B(0,3),C(-3,4),D(1,-4)