Understanding Area & Perimeter
Area is the space inside a shape. It is measured in square units.
Perimeter is the distance around a shape. It is measured in linear units.
Here are a few common formulas:
- Rectangle: Area = length × width, Perimeter = 2 × (length + width)
- Square: Area = side × side, Perimeter = 4 × side
- Circle: Area = π × radius², Perimeter (Circumference) = 2 × π × radius