area and perimeter
francisco silvaにより
![Mind Map: area and perimeter](https://www.mindmeister.com/image/xlarge/370102072/mind-map-area-and-perimeter.png)
1. area
2. The perimeter of a circle is called the circumference
3. Perimeter is the distance around a two-dimensional shape.
4. perimeter
5. surface
5.1. length × width
5.1.1. Divide the shape into squares
6. Shapes
6.1. Simple shapes
6.2. Compound shapes
6.2.1. tight compacted shape