Shoelace Formula for Triangles or Parallelograms
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- According to the Shoelace Theorem for a convex polygon with three coordinates (namely a triangle), with coordinates (a,r)(a, r)(a,r), (b,s)(b, s)(b,s), and (c,t)(c, t)(c,t), we …
By Ahaan Rungta, Ray Li
- Suppose the polygon PPP has vertices (a1,b1)(a_1, b_1)(a1,b1), (a2,b2)(a_2, b_2)(a2,b2), ... , (an,bn)(a_n, b_n)(an,bn), listed in clockwise order. Then the area of PPP is…
By Benjamin Qi