**Vocabulary: **The surface area of a three-dimensional figure is the sum of the areas of its surfaces.

**Rectangular Prisms**

**Surface Area of Rectangular Prism**

- How many faces are there?
- What shapes are the faces?
- Are any of the faces the same?

*How do we find the surface area?*

- Area = the sum of the sides

**Triangular Prisms**

**Surface Area of Triangular Prism**

- How many faces are there?
- What shapes are the faces?
- How many of each shape are there?

*How do we find the surface area?*

- Find the area of the faces and add them together!
- Triangles:
- Rectangles:
- Total Surface Area (SA) = 144
- Area = 2 x triangular faces + area of each rectangular face

**Cylinders**

**Surface Area of Cylinder**

- How many faces are there?
- What shapes are the faces?
- Are any of the faces the same?

*How do we find the surface area?*

- Area = Area of the side + Area of the base + Area of the top
- A =

Assignment: Surface Area of Prisms and Cylinders