The perimeter is the distance around the outside of a closed 2D shape, space or area. You see the perimeter in real life on a football pitch or around a house to show its boundary. You can only ...

So how could an old school draftsman figure out the area of complex shapes? [Chris Staecker] introduces ... isn’t just measuring the length of the perimeter, but the size of the perimeter.

The perimeter is the distance around the outside of a closed 2D shape, space or area. You see the perimeter in real life on a football pitch or around a house to show its boundary. You can only ...