KAYLA: And it’s a closed shape.It wouldn’t be much good as a pond otherwise. ADA: These properties tell us it’s a polygon.A polygon is a closed shape made of straight lines.Your pond is a type of ...
Narrator: Okay. Draw a rectangle.Now, measure the perimeter. It’s the total length around a shape. But what if you couldn’t measure the sides? Then you’d have to use what information you do know to ...