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import math

def calculate_area(sides, angles, distances):
# Check if the number of sides matches the number of angles and distances
if len(angles) != sides or len(distances) != sides:
print("Invalid input: Number of angles/distances doesn't match the number of sides.")
return None

# Initialize area
area = 0

# Calculate area using coordinates method
for i in range(sides):
j = (i + 1) % sides

area /= 2

return abs(area)

def main():
# Input number of sides
sides = int(input("Enter the number of sides of the polygon (3 to 7): "))
if sides < 3 or sides > 7:
print("Invalid number of sides. Exiting...")
return

# Input angles
angles = []
for i in range(sides):
angle = float(input(f"Enter the angle {i+1} in degrees: "))
angles.append(angle)

# Input distances
distances = []
for i in range(sides):
distance = float(input(f"Enter the distance {i+1}: "))
distances.append(distance)

# Calculate area
area = calculate_area(sides, angles, distances)
if area is not None:
print(f"The area of the traverse is: {area} square units.")

if __name__ == "__main__":
main()