1. Lesson 6 Menu Five-Minute Check (over Lesson 7-5) Main Idea and Vocabulary Targeted TEKS Key Concept: Volume of a Pyramid Example 1:Find the Volume of a Pyramid Example 2:Real-World Example Key Concept: Volume of a Cone Example 3:Find the Volume of a Cone Key Concept: Volume of a Sphere Example 4:Find the Volume of a Sphere

2. Lesson 6 MI/Vocab cone sphere Find the volumes of pyramids, cones, and spheres.

3. Lesson 6 Key Concept 1

4. Lesson 6 Ex1 Find the Volume of a Pyramid Find the volume of the pyramid. Answer:The volume is 140 cubic centimeters. Volume of a pyramid Simplify. B = 7 ● 3, h = 20

5. A.A B.B C.C D.D Lesson 6 CYP1 A.60 m 3 B.72 m 3 C.80 m 3 D.120 m 3 Find the volume of the pyramid.

6. Lesson 6 Ex2 SOUVENIRS A novelty souvenir company wants to make snow “globes” shaped like pyramids. It decides that the most cost-effective maximum volume of water for the pyramids is 12 cubic inches. If a pyramid measures 4 inches in height, find the area of its base. Volume of a pyramid Replace V with12 and h with 4.

7. Lesson 6 Ex2 Simplify. Answer:The area of the base of the snow globe is 9 square inches.

8. Lesson 6 CYP2 1.A 2.B 3.C 4.D A.6 in. B.6.5 in. C.7 in. D.7.5 in. TOYS A company is designing pyramid shaped building blocks with a square base. They want the volume of the blocks to be 18 square inches. If the length of the side of the base is 3 inches, what should be the height of the blocks?

9. Lesson 6 Key Concept 2

10. Lesson 6 Ex3 Find the Volume of a Cone Find the volume of the cone. Round to the nearest tenth. Answer:The volume is about 18.8 cubic meters. Volume of a cone Replace r with1.5 and h with 8. Simplify.

11. 1.A 2.B 3.C 4.D Lesson 6 CYP3 A.28.5 in 3 B.29.2 in 3 C.34.1 in 3 D.37.7 in 3 Find the volume of the cone. Round to the nearest tenth.

12. Lesson 6 Key Concept 3

13. V ≈ 904.8 Lesson 6 Ex4 GLOBES A school principal purchased a new globe for each classroom in the school. The radius of each globe was 6 inches. What is the volume of each globe? Round to the nearest tenth. Answer:The volume of each globe is about 904.8 cubic inches. Find the Volume of a Sphere Volume of a sphere Replace r with 6. Simplify.

14. A.A B.B C.C D.D Lesson 6 CYP4 A.143.8 cm 3 B.166.2 cm 3 C.174.5 cm 3 D.211.2 cm 3 SPORTS The diameter of a tennis ball is 6.5 centimeters. What is the volume of a tennis ball? Round to the nearest tenth.