1. Surface area practice For each problem find the surface area. Answers are found on the last slide.

2. Question #1

3. Question #2

4. Question #3

5. Question #4

6. Question #5

7. Question #6

8. 1.Draw the net or the figure. 2.Find the area of each face. 3.Add the areas to find the surface area. The outside of a cube-shaped box is covered in velvet. If each side is 3 inches, how much velvet is needed to cover the box? Question #7

9. 1.Draw the net or the figure. 2.Find the area of each face. 3.Add the areas to find the surface area. The outside of a cube-shaped box is covered in velvet. If each side is 3.5 inches, how much velvet is needed to cover the box? Question #8

10. 1.Draw the shape or the net. 2.Find the area of each face. 3.Add the areas to find the surface area. How much cardboard is needed to make a shipping box that is 7 inches long, 10 inches wide, and 5 inches high? Question #9

11. 1.Draw the net or the shape. 2.Find the area of each face. 3.Add the areas to find the surface area. A triangular pyramid made of equilateral triangles each having a height of 12 cm and a base of 2 cm. What is its surface area? Question #10

12. Question #11 Maddi bought a gift for her friend. She wants to place the gift in a package with the length of 9 inches, width of 12 inches, and height of 4 inches. Then she wants to wrap the gift. a. What is the surface area of the package? b. If Maddi bought a roll of wrapping paper that is 3 feet long and 2 feet wide, will it be enough to wrap the package? (hint: convert feet into inches)

13. Question #12 The cake shown below is to be covered in frosting. How much frosting are they going to need to cover the cake?

14. Question #13

15. Answer Key 1.1734 cm² 2.72 cm² 3.188 in² 4.1150 cm² 5.336 in² 6.93 m² 7.Total surface area: 54 in² 8.Total surface area: 73.5 in² 9.Total surface area: 310 in² 10.Total surface area: 48 cm² 11. a. 384 in² b. She would have enough wrapping paper. 12.192 in² 13.1620 square feet