ABCD is a quadrilateral formed by the points A(-2, -2), B(5, 1), C(2, 4) and D(-1, 5)
What is the area of `DeltaABC`

The quadrilateral ABCD formed by the points A (0, 0), B (3, 4), C (7, 7) and D (4, 3) is a

Find the area of quadrilateral formed by joining the points (-4,2) , (1,-1) ,(4,1) and (2,5) :

The area of the quadrilateral formed by the points (2,-1),(4,3),(-1,2) and (-3,-2) taken in order is

ABCD is rectangle formed by the points A(-1, -1), B(-1, 4), C(5, 4) and D(5, -1). If P, Q, R and S be the midpoint of AB, BC, CD and DA respectively, show that PQRS is a rhombus.

" The area of a quadrilateral formed by the points "(1,2),(2,-3),(-2,4)" and "(0,5)" is (in sq.units) "

Show that the points A(3, 5), B(6, 0), C(1, -3) and D(-2, 2) are the vertices of a square ABCD.

Show that the points A(2,-2), B(8, 4), C(5,7) and D(-1, 1) are the angular points of a rectangle.

The points A (-1,-2), B (4,3) ,C (2,5) and D (-3,0) in that order form a rectangle.

Show that the points A(3, 1), B(0, -2), C(1, 1) and D(4, 4) are the vertices of a parallelogram ABCD.

ABCD is a rectangle formed by the points A(1," "1)," "B(1," "4)," "C(5," "4)" "a n d" "D(5," "1) . P, Q, R and S are the midpoints of AB, BC, CD and DA respectively. Is the quadrilateral PQRS a square? A rectangle? or a rhombus? Justify yo