(Area of a convex polygon) A polygon is convex if it contains any line segments that connects two points of the polygon. Write a
Enter the number of points: 7
Enter the coordinates of the points:
–12 0 –8.5 10 0 11.4 5.5 7.8 6 -5.5 0 –7 –3.5 –13.5
The total area is 292.575
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