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Shapes on the coordinate plane
Let's think about shapes as collections of points on the coordinate plane. When you're done with this tutorial, you might be saying, "I have had it with these shapes on this plane!" But you'll be happy you went through it.
Remember our discussion of the coordinate plane? Sure you do! Let's graph the given coordinates of three of the polygon vertices, and find where the 4th vertex is.
In this example we are given the coordinates of the vertices and asked to construct the resulting polygon (specifically a quadrilateral). This is fun!