Perimeter of Polygons

The perimeter of any shape is the distance measured around a 2-dimensional shape.

Example:

The perimeter is 5 + 5 + 6 + 7 = 13 feet

Geoboards can be very helpful in understanding perimeter and area.

Here are some links to geoboards:

How to make your own geoboard.

An e-geoboard

Exercises that you can do on your geoboards.

  1. Copy a shape. Copy large shapes.
  2. Divide and make smaller shapes with larger shapes.
  3. You can choose to make certain types of shapes only.
  4. Find the perimeter of the shapes you make.
  5. Find the perimeter of the combined shapes you make.