In a quadrilateral, the diagonals intersect at right and have lengths equal to 9 cm and 10 cm. respectively. Find the area of the quadrilateral.
Area of quadrilateral = 1/2 * d1d2
d1 = 9cm. and d2 = 10 cm.
Area = 1/2 * 9 * 10
A = 9 * 5
A = 45 Sq. cm.
Directions: Solve the following problems. Also write at least ten examples of your own.