The diagonals of a quadrilateral have lengths of cm and cm.
Given that the measure of the included angle between them is , determine the area of the quadrilateral approximating the
result to the nearest square centimeter.
Use the fact that the area of a quadrilateral is equal to half the product of the lengths of its diagonals times the sine of the included angle between them to calculate the approximate area of the quadrilateral as follows:
Thus, to the nearest square centimetre, a quadrilateral whose diagonal lengths are and has an area of .