— Area by Coordinates (Shoelace)
Area and perimeter of a closed polygon (3–6 vertices) from plane coordinates using the coordinate (shoelace) method A = ½|Σ xi(yi+1 − yi−1)|.
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— Area by Coordinates (Shoelace)
Area and perimeter of a closed polygon (3–6 vertices) from plane coordinates using the coordinate (shoelace) method A = ½|Σ xi(yi+1 − yi−1)|.