Can you together?
Solve 40 + 20 + 3.
The perimeter of a shape is the length around the outside of the shape.
If a shape is made up of unit squares, we can use those to count the distance around the outside of the whole shape. We count the outside edges of every unit square, making sure we include the whole outside of our shape.
Find the perimeter of the shaded region shown, where each square has a length of 1 unit.
2D shapes are also known as polygons, and we've seen some of these shapes before. This video looks at how to work out the perimeter of any polygon.
Find the perimeter of the figure shown.
selects and uses the appropriate unit and device to measure lengths and distances, calculates perimeters, and converts between units of length