Polygon Area
Let $(x_1,y_1),(x_2,y_2),\ldots,(x_n,y_n)$, in that order, be the vertices of the closed polygon $P$, this application finds the area of $P$.
Let $(x_1,y_1),(x_2,y_2),\ldots,(x_n,y_n)$, in that order, be the vertices of the closed polygon $P$, this application finds the area of $P$.