Trapezoids

8.2 Outline

1. Rectangles
   1. define area
   2. define square unit
   3. formulas
      1. rectangle
      2. square
2. Parallelograms
   1. definition
   2. formula
   3. derivation of formula
3. Triangles
   1. formula
   2. derivation of formula
4. Trapezoids
   1. definition
   2. formula
   3. derivation of formula
5. Circles
   1. formula
   2. derivation of formula
6. Applications
   1. conversion application
   2. acre definition
   3. conversion of