1. In this video, you will learn how to find the surface area of rectangular prisms, by analyzing the prism’s six faces and computing their areas.

2. area of a rectangle – computed by multiplying length times width (A = L x W)

3. rectangular prism – a 3D solid with six faces that are rectangles

4. surface area – the sum of the areas of the faces of a 3D solid

5. 2 small faces

6. 2 medium faces

7. 2 large faces

8. Surface Area of a Rectangular Prism = Sm. Rec + Sm. Rec + Med. Rec + Med. Rec + Lg. Rec + Lg. Rec

9. Rec Prism SA = 2(Sm. Rec) + 2(Med. Rec) + 2(Lg. Rec) Rec Prism SA = 2(L x W) + 2(L x W) + 2(L x W) Rec Prism SA = 2(3 x 6) + 2(3 x 8) + 2(6 x 8) Rec Prism SA = 2(18) + 2(24) + 2(48) Rec Prism SA = 36 + 48 + 96 8 in 3 in 6 in

10. Rec Prism SA = 2(Sm. Rec) + 2(Med. Rec) + 2(Lg. Rec) Rec Prism SA = 2(L x W) + 2(L x W) + 2(L x W) Rec Prism SA = 2(3 x 6) + 2(3 x 8) + 2(6 x 8) Rec Prism SA = 2(18) + 2(24) + 2(48) Rec Prism SA = 36 + 48 + 96 8 in 3 in 6 in

11. Rec Prism SA = 2(Sm. Rec) + 2(Med. Rec) + 2(Lg. Rec) Rec Prism SA = 2(L x W) + 2(L x W) + 2(L x W) Rec Prism SA = 2(3 x 6) + 2(3 x 8) + 2(6 x 8) Rec Prism SA = 2(18) + 2(24) + 2(48) Rec Prism SA = 36 + 48 + 96 8 in 3 in 6 in

12. Rec Prism SA = 2(Sm. Rec) + 2(Med. Rec) + 2(Lg. Rec) Rec Prism SA = 2(L x W) + 2(L x W) + 2(L x W) Rec Prism SA = 2(3 x 6) + 2(3 x 8) + 2(6 x 8) Rec Prism SA = 2(18) + 2(24) + 2(48) Rec Prism SA = 36 + 48 + 96 8 in 3 in 6 in

13. Rec Prism SA = 2(Sm. Rec) + 2(Med. Rec) + 2(Lg. Rec) Rec Prism SA = 2(L x W) + 2(L x W) + 2(L x W) Rec Prism SA = 2(3 x 6) + 2(3 x 8) + 2(6 x 8) Rec Prism SA = 2(18) + 2(24) + 2(48) Rec Prism SA = 36 + 48 + 96 8 in 3 in 6 in

14. Rec Prism SA = 2(Sm. Rec) + 2(Med. Rec) + 2(Lg. Rec) Rec Prism SA = 2(L x W) + 2(L x W) + 2(L x W) Rec Prism SA = 2(3 x 6) + 2(3 x 8) + 2(6 x 8) Rec Prism SA = 2(18) + 2(24) + 2(48) Rec Prism SA = 36 + 48 + 96 8 in 3 in 6 in

15. Rec Prism SA = 2(Sm. Rec) + 2(Med. Rec) + 2(Lg. Rec) Rec Prism SA = 2(L x W) + 2(L x W) + 2(L x W) Rec Prism SA = 2(3 x 6) + 2(3 x 8) + 2(6 x 8) Rec Prism SA = 2(18) + 2(24) + 2(48) Rec Prism SA = 36 + 48 + 96 8 in 3 in 6 in

16. Rec Prism SA = 2(Sm. Rec) + 2(Med. Rec) + 2(Lg. Rec) Rec Prism SA = 2(L x W) + 2(L x W) + 2(L x W) Rec Prism SA = 2(3 x 6) + 2(3 x 8) + 2(6 x 8) Rec Prism SA = 2(18) + 2(24) + 2(48) Rec Prism SA = 36 + 48 + 96 8 in 3 in 6 in

17. Rec Prism SA = 2(Sm. Rec) + 2(Med. Rec) + 2(Lg. Rec) Rec Prism SA = 2(L x W) + 2(L x W) + 2(L x W) Rec Prism SA = 2(3 x 6) + 2(3 x 8) + 2(6 x 8) Rec Prism SA = 2(18) + 2(24) + 2(48) Rec Prism SA = 36 + 48 + 96 8 in 3 in 6 in

18. In this video, you learned how to find the surface area of rectangular prisms, by analyzing the prism’s six faces and computing their areas.