1. Splash Screen

2. Lesson Menu Five-Minute Check (over Lesson 12–4) Main Idea Key Concept: Surface Area of a Cylinder Example 1:Find the Surface Area of a Cylinder Example 2:Real-World Example

3. Main Idea/Vocabulary Find the surface area of a cylinder.

4. KC

5. Example 1 Find the Surface Area of a Cylinder Find the surface area of the cylinder. Round to the nearest tenth. Answer: 169.6 cm 2 S = 2  r 2 + 2  rh = 2  (3) 2 + 2  (3)(6)Replace r with 3 and h with 6.

6. 1.A 2.B 3.C 4.D Example 1 A.987.3 in 2 B.1,156.1 in 2 C.1,347.8 in 2 D.1,621.5 in 2 Find the surface area of the cylinder. Round to the nearest tenth.

7. Example 2 GIFT WRAP A poster is contained in a cardboard cylinder that is 10 inches high. The cylinder’s base has a diameter of 8 inches. How much paper is needed to wrap the cardboard cylinder if the ends are to be left uncovered? Since only the curved side of the cylinder is to be covered, you do not need to include the areas of the top and bottom of the cylinder. S = 2  rh Replace r with 4 and h with 10. = 2  (4)(10) ≈251.2Simplify. Answer: About 251.2 square inches of paper is needed.

8. 1.A 2.B 3.C 4.D Example 2 A.226.2 in 2 B.241.5 in 2 C.263.9 in 2 D.275.5 in 2 LABELS A can of fruit juice is in the shape of a cylinder with a diameter of 6 inches and a height of 12 inches. How much paper is needed to create the label if the ends are to be left uncovered?

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10. Resources Five-Minute Check (over Lesson 12–4) Image Bank Math Tools The Pythagorean Theorem

11. 1.A 2.B 3.C 4.D Five Minute Check 1 (over Lesson 12-4) A.164 in 2 B.231 in 2 C.262 in 2 D.350 in 2 Find the surface area of the rectangular prism. Round to the nearest tenth if necessary.

12. 1.A 2.B 3.C 4.D Five Minute Check 2 (over Lesson 12-4) A.47.3 yd 2 B.69.3 yd 2 C.105.5 yd 2 D.116.5 yd 2 Find the surface area of the rectangular prism. Round to the nearest tenth if necessary.

13. 1.A 2.B 3.C 4.D Five Minute Check 3 (over Lesson 12-4) A.384 cm 2 B.320 cm 2 C.272 cm 2 D.160 cm 2 Find the surface area of a rectangular prism that has a length of 8 centimeters, a width of 6 centimeters, and a height of 8 centimeters.

14. 1.A 2.B 3.C 4.D Five Minute Check 4 (over Lesson 12-4) A.147 cm 2 B.196 cm 2 C.294 cm 2 D.343 cm 2 If the area of one face of a cube is 49 cm 2, what is the surface area of the cube?

15. End of Custom Shows