PERIMETER: Is the distance around a plane figure. We have to add the lengths of the sides to find the perimeter.
AREA: Is the number of square units needed to cover a surface. You can count the number of squares units to find the area. You can find the area of a rectangle by multiplying the length by the width. It is measured in square (Sq) units; some of these units are: squared centimeters (Cm2); squeared metres (m2) and squared kilometers (km2).