I-6 Solids & SA of prisms and spheres HW Name: ____________________________

Geometry

(a)State if the figure is a prism, pyramid, or cone and (b)state the type and number of faces. 1.

2.

3.

4.

State the shape of the cross section formed by the intersection of the plane and solid. 5.

6.

7.

8. Find the surface area of the rectangular prism.

SA = _________

9. Find the Surface area of the prism. ROUND YOUR ANSWER TO THE NEAREST TENTH. (Remember… The triangles are technically the bases!!!)

SA = _____________

10. A company is deciding which box to use for their merchandise. The first box measures 8 inches by 6.25 inches by 10.5 inches. The second box measures 9 inches by 5.5 inches by 11.75 inches.

a) Which box required more material to make? Justify your answer with the appropriate calculations.

b) If each box used material that cost $0.03 per square

inch to make, how much does a company save by choosing to make fifty boxes of the smaller box in comparison to fifty boxes of the larger box?

11. Marley bakes a rectangular cake that is 9 inches wide, 13 inches long and 2 inches high. She removes the cake from the pan to frost it. How many square inches of frosting does she need? (Remember, you don’t put frosting on the bottom of the cake!)

12. (Hint… Make up measurement for your own cubes!)

13.

14.

15. According to Google: About 71 percent of the Earth's surface is water-covered, and the oceans hold

about 96.5 percent of all Earth's water. If the earth has a radius of 3959mi, about how many square miles of water covers Earth’s surface.