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 pentagon whose vertices are A(1,1),B(7,21),C(7,-3),D(12 ,2), and E(0,-3)

Find the slope of the diagonals of a quadrilateral with vertices A(1, 7), B(6, 3) C(0, - 3) and D(-3, 3).

Find the area of a triangle having vertices A(3,2),B(11 ,8), and C(8,12)dot

Find the area of triangle ABC given that vertices are A(2,1,-2) B(1,4,2) and C(3,-1,-1).

Find the orthocentre of Delta A B C with vertices A(1,0),B(-2,1), and C(5,2)

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

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

The area of the triangle whose vertices are A(1,-1,2),B(2,1-1)C(3,-1,2) is …….

Find the area of the triangle whose vertices are A(3, -1,2) ,B(1, - 1, 3) and C(4, - 3 , 1)

Given a quadrilateral ABCD with vertices A(-3,-8),B(6,-6),C(4,2) and D(-8,2). Find the area of quadrilateral ABCD.