Area and Perimeter
Area is how much space a shape takes up, while perimeter is how long the edges of the shape are. One is for measuring the size of the surface, the other is for the length of the edges, and their units are different too.
Area is how much space a shape takes up, while perimeter is how long the edges of the shape are. One is for measuring the size of the surface, the other is for the length of the edges, and their units are different too.
Everything is a system, and every system contains systerms.