If all four sides of the object are identical, then you have a square. Squares are a type of rectangle. If the object you are looking at does not meet these conditions, then it is not a rectangle.
You will see the units written as ft2, m2, cm2, etc.
In the above example, the length is 5 cm and the width is 2 cm.
For example, A = l x w = 5 x 2 = 10 cm2.
If all four sides of the object are identical, then you have a square. Squares are a type of rectangle. If the object you are looking at does not meet these conditions, then it is not a rectangle.
The units for perimeter can be any unit for the measure of length: feet, miles, meters, centimeters, etc.
In the above example, the length is 5 cm and the width is 2 cm.
For example, P = 2(l + w) = 2(2 + 5) = 2(7) = 14 cm. For example, P = 2l + 2w = (2 x 2) + (2 x 5) = 4 + 10 = 14 cm.
