Python: Compute the area of the polygon
Python Basic - 1: Exercise-59 with Solution
A convex polygon is a simple polygon in which no line segment between two points on the boundary ever goes outside the polygon. Equivalently, it is a simple polygon whose interior is a convex set. In a convex polygon, all interior angles are less than or equal to 180 degrees, while in a strictly convex polygon all interior angles are strictly less than 180 degrees.
Write a Python program that compute the area of the polygon . The vertices have the names vertex 1, vertex 2, vertex 3, ... vertex n according to the order of edge connections.
However, n is 3 or more and 20 or less. You can also use the following formula to calculate the area S from the lengths a, b, and c of the triangle's three sides.
def poly_area(c): add =  for i in range(0, (len(c) - 2), 2): add.append(c[i] * c[i + 3] - c[i + 1] * c[i + 2]) add.append(c[len(c) - 2] * c - c[len(c) - 1] * c) return abs(sum(add) / 2) print(poly_area([1, 0, 0, 0, 1, 1, 2, 0, -1, 1]))
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