Area is the amount of space inside a flat shape. It tells us how much surface a shape covers. Area is measured in square units, such as square inches (in²) or square centimeters (cm²).
Think of area as "how many little squares fit inside the shape."
The formula for the area of a rectangle is:
Area = length × width
Always use the same unit for length and width. Multiply, then label your answer with square units.
A square is a special rectangle with all sides equal. The formula for area is:
Area = side × side or Area = side²
Since all sides are equal, you only need one measurement to find the area of a square.
Use the area formula when you are asked about the space inside a rectangle or square, not just the distance around it.
Do not confuse area with perimeter. Perimeter measures the distance around a shape, while area measures the space inside.
Writing about math helps show understanding. Use full sentences to explain your work.
Always include the unit and show how you multiplied. This makes your answer complete and correct.