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 whose vertices are respectively 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 .

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 ABCD with vertices A(-2,0),B(0,4),C(4,-2),D(2,2)

Find the area of a quadrilateral ABCD having vertices at A(l, 2), B(1, 0), C(4,0) and D(4,4).

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

Find the area of the quadrilateral with vertices A(1,2), B(2,2), C(3,3), D(5,3).

Find the area of the quadrilateral whose vertices are : (1, 1), (7, -3), (12, 2) and (7, 21)

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

Find the are of quadrilateral ABCD whose vertices are A(3, -1), B(9, -5), C(14, 0) and D(9, 19).