The perimeter is the total distance around the edge of a 2D shape. Examples of units of distance are millimetres (mm), centimetres (cm) and metres (m). The perimeter of any 2D shape can be found by ...

Area is the amount of space taken up by a flat shape and is calculated by counting the square units inside it; almost like the tiles on a floor. For example, if we can repeatedly fit a square with 1cm ...

Want to find the area of shapes based on rectangles? Estimate the area of a shape based on rectangles on a grid. Next, place rows and columns of squares inside two rectangles to work out the correct ...