SOLUTION: The area of a triangle can be found using the 'shoelace method', Can we prove that the 'shoelace method' can be used to find the area of any n-sided polygon in the Cartesian plane?

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Question 207421: The area of a triangle can be found using the 'shoelace method', Can we prove that the 'shoelace method' can be used to find the area of any n-sided polygon in the Cartesian plane?
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
Go to shoelace algorithm at artofproblemsolving.com