Polygons with equal area and perimeter but different number of sides? Let's say we have two polygons with different numbers of sides. They can be any sort of shape, but they have to have the same area, and perimeter. 
There could be such possibilities, but can someone show me with pictures? I just need visualize it.
Sometimes in life you just have to know it, and sometimes we need a picture shown in our faces :).

For the first shape, take a rectangle with sides $1,x$.  For the second shape, take a right triangle with sides $4,\frac{x}{2}, \sqrt{(\frac{x}{2})^2+4}$.  They both have area $x$, for every $x$.  Making them have the same perimeter reduces to solving a quadratic equation; a solution is $x=\frac{3+\sqrt{33}}{2}$.  Then both shapes have perimeter $5+\sqrt{33}$.
