1. Surface Area of Prisms

2. Lesson Objective
Students will work with a formula for the surface area of a prism.

3. Lesson Beginning
In your own words, define surface area. List 3 real life examples where you would need to find surface area.

4. Surface Area of Prisms
Surface area of a polyhedron is the sum of the areas of its faces. The surface area of any prism is the sum of the areas of the bases and the lateral faces. S = areas of bases + areas of lateral faces

5. Surface Area of a Rectangular Prism
SA = 2(lw + lh + wh)

6. Surface Area of Triangular Prisms
SA = Area of three rectangles + Area of two triangles

7. Modeling
Find the surface area of the prism.

8. Practice
Find the surface areas of the rectangular prisms

9. Modeling
Find the surface area of the prism.

10. Practice
Find the surface areas of the triangular prisms

11. Practice
Fifty percent of the surface area of the bread is crust. What is the height h?

12. Practice
Which prism has the greater surface area?

13. Practice
Draw and label a rectangular prism that has a surface area of 158 square yards.

14. Practice
Find the surface area.