Area is the number of units it takes to cover a surface, this is usually done by squares because you have one square inch of area. When you measure in area, you square whatever unit you are using, so it would be cm squared, or inches squared, meters squared. Area is based on the shape of the object that is being measured. When you measure a circle, you cannot use the same formula as you would a square.
Each formula is specifically made for each object.
Here is a area video to better understand how to calculate area.
This gives a better idea of how you measure in square units
Perimeter is the length of the object or shape all the way around it.
Perimeter is the measurement of the outside of the length around each part of the shape.
When you measure perimeter you can also measure it in the same units as you do any other shape. When measuring perimeter, you can add up all sides, and that will give you the perimeter. You do not square perimeter, you just but the cm,in,m,yd, or whatever your units may be.
The perimeter of this shape would be 15in.
Area and Perimeter games
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