Perimeter Find the perimeter of the following polygons.

Did you know that the concept of perimeter dates back to ancient civilizations? The Egyptians used it in their architectural designs, and the Greeks refined it with their love for geometry. The term "perimeter" is derived from the Greek word "perimetron," which means "to measure around." This practice was essential not just for buildings but also for establishing land boundaries! Finding the perimeter of polygons can be super fun! For regular polygons like squares or equilateral triangles, you can simply multiply the length of one side by the number of sides. For irregular shapes, just add up the lengths of all the sides. Common mistakes include forgetting to measure in the same units or miscalculating a side length, so always double-check your work!