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2. Lesson Menu Five-Minute Check (over Lesson 14–6) Main Idea and Vocabulary Key Concept: Surface Area of a Rectangular Prism Example 1:Find the Surface Area Example 2:Find the Surface Area

3. Main Idea/Vocabulary I will find the surface areas of rectangular prisms. surface area

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5. Example 1 Find the Surface Area Find the surface area of the rectangular prism.

6. Example 1 Find the Surface Area Find the area of each face. top and bottom: 2(ℓw) = 2(8 × 4) or 64 front and back: 2(ℓh) = 2(8 × 3) or 48 two sides: 2(wh) = 2(4 × 3) or 24 Add to find the surface area. Answer: The surface are is 64 + 48 + 24 or 136 square centimeters.

7. 1.A 2.B 3.C 4.D Example 1 A.44 m 2 B.48 m 2 C.88 m 2 D.96 m 2 Find the surface area of the rectangular prism. 2 m 6 m 4 m

8. Example 2 Find the Surface Area A box measure 13 inches long, 7 inches wide, and 4 inches deep. What is the surface area of the box? Find the area of each face. top and bottom: 2(ℓw) = 2(13 × 4) or 104 front and back: 2(ℓh) = 2(13 × 7) or 182 two sides: 2(wh) = 2(7 × 4) or 56 Add to find the surface area. Answer: The surface are is 104 + 182 + 56 or 342 square inches.

9. 1.A 2.B 3.C 4.D Example 2 A. 384 in 2 B. 408 in 2 C. 424 in 2 D. 432 in 2 Find the surface area of a box that is 12 inches long, 9 inches wide, and 4 inches deep.

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11. Resources Five-Minute Check (over Lesson 14–6) Image Bank Math Tool Chest Volumes of Prisms

12. 1.A 2.B 3.C 4.D Five Minute Check 1 (over Lesson 14–6) Find the volume of the prism. A.59 yd 3 B.168 yd 3 C.180 yd 3 D.162 yd 3 = 8 yd, w = 7 yd, h = 3 yd

13. 1.A 2.B 3.C 4.D Five Minute Check 2 (over Lesson 14–6) Find the volume of the prism. = 12 cm, w = 8 cm, h = 5 cm A.168 cm 3 B.200 cm 3 C.220 cm 3 D.480 cm 3

14. 1.A 2.B 3.C 4.D Five Minute Check 3 (over Lesson 14–6) Find the volume of the prism. = 5 ft, w = 3 ft, h = 9 ft 1 4 A.122 ft 3 B.136 ft 3 C.141 ft 3 D.288 ft 3 3 4 3 4 1 4

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