Identify the polygon with vertices A(5,0), B(2,4), C(−2,1), and D(1,−3), and then find the perimeter and area of the polygon.

Answer 1

Draw a figure on graph paper!

The polygon appears to be a square, but you will need to do some algebra to prove that.

Oh, it is easier than I first thought.. The figure contains four 3-4-5 right triangles...and with that hint you should be able to convince yourself (and everyone else) that this figure is a square!