Area and Perimeter

The area of a figure measures the size of the space it takes up. It is always, always measuring a flat surface. To find the area of something, you must multiply length and width. This is usually put in some type of square unit. Some examples of the units used are square meters, square centimeters, square inches, or square kilometers.

Perimeter is the sum of all the sides of a shape. This is related to area, so you can also use meters, centimeters, inches or kilometers.