Program: Area of a Quadrilateral in the XY plane. Author: Ameer Alwardi Date: ý1/19/2001 Description: This program would find you the area of a quadrilateral in the xy-palne. Example: Find the area of a quadrilateral whose vertices are (-1,-1) , (9,4) , (20,6) , and (10,1) When you excute the program Just insert the numbers as follow: A=-1 B=-1 C=9 D=4 E=20 F=6 G=10 H=1 Questions?/Comments?/Ideas?/ect.: alwardia@batelco.com.bh