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

Find the area of the quadrilateral whose vertices are : (-4, 5), (0, 7), (5, -5) and (-4, -2)

Find the area of the quadrilateral whose vertices are (-3,\ 2),\ (5,\ 4),\ (7,\ -6) and (-5,\ -4)

Find the area of the quadrilateral whose vertices are (-4,\ -2),\ (-3,\ -5),\ (3,\ -2),\ (2,\ 3)

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) .

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 triangle whose vertices are : (3,-4), (7, 5), (-1, 10)

Find the area of the triangle whose vertices are: (2,7),(1,1),(10,8)

Find the area of the triangle, whose vertices are (2,1), (4,5) and (6,3).