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Period 08 TURN IN ALL HW INCLUDING YOUR PROJECT FROM YESTERDAY GET BUSY ON YOUR BELL RINGER BELOW.

Period 08 TURN IN ALL HW INCLUDING YOUR PROJECT FROM YESTERDAY GET BUSY ON YOUR BELL RINGER BELOW. Bell Ringer (5 minutes) 1-7 Worksheet on your desk. p. 16 Complete the chart Refer to your notes on 1-7 or go to p. 69. Content Standards

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Period 08 TURN IN ALL HW INCLUDING YOUR PROJECT FROM YESTERDAY GET BUSY ON YOUR BELL RINGER BELOW.

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  1. Period 08 • TURN IN ALL HW INCLUDING YOUR PROJECT FROM YESTERDAY • GET BUSY ON YOUR BELL RINGER BELOW. Bell Ringer (5 minutes) 1-7 Worksheet on your desk. • p. 16 Complete the chart • Refer to your notes on 1-7 or go to p. 69

  2. Content Standards G.GMD.3 Use volume formulas for cylinders, pyramids, cones, and spheres to solve problems. Mathematical Practices 2 Reason abstractly and quantitatively. 6 Attend to precision. CCSS

  3. You identified and named two-dimensional figures. • Identify and name three-dimensional figures. • Find surface area and volume. Then/Now

  4. cylinder • cone • sphere • regular polyhedron • Platonic solid • surface area • volume • polyhedron • face • edge • vertex • prism • base • pyramid Vocabulary

  5. A solid with all flat surfaces that enclose a single region of space is called a polyhedron. • Each flat surface is called a face. • The line segments where the faces intersect are called edges. • The point where 3 or more edges meet is called the vertex. • Polyhedrons are named by the shape of their bases.

  6. Concept

  7. Identify Solids A.Determine whether the solid is a polyhedron. Then identify the solid. If it is a polyhedron, name the bases, faces, edges, and vertices. Example 1

  8. Answer: rectangular prism;Bases: rectangles EFHG, ABDCFaces: rectangles FBDH, EACG, GCDH,EFBA, EFHG, ABDC Vertices: A, B, C, D, E, F, G, H Identify Solids The solid is formed by polygonal faces, so it is a polyhedron. The bases are rectangles. This solid is a rectangular prism. Example 1

  9. Identify Solids B.Determine whether the solid is a polyhedron. Then identify the solid. Example 1

  10. Identify Solids The solid is formed by polygonal faces, so it is a polyhedron. The bases are hexagons. This solid is a hexagonal prism. Example 1

  11. Identify Solids C.Determine whether the solid is a polyhedron. Then identify the solid. If it is a polyhedron, name the bases, faces, edges, and vertices. Example 1

  12. Identify Solids The solid has a curved surface, so it is not a polyhedron. The base is a circle and there is one vertex. So, it is a cone. Answer:Base: circle TVertex:Wno faces or edges Example 1

  13. A. Identify the solid. Example 1

  14. B. Identify the solid. Example 1

  15. C. Identify the solid. Example 1

  16. Do p. 70 – 71 1, 6, 9, 12, 15 as a class

  17. A polyhedron is a regular polyhedron if all of its faces are regular congruent polygons and all the edges are congruent. • There are exactly 5 types of regular polyhedrons. See p. 68. They are called Platonic Solids since Plato used them a lot.

  18. Concept

  19. Surface Area is a 2-dimensional measurement of the surface of a solid figure. The surface area is the sum of the areas of each faces. • Volume is the measurement of the amount of space enclosed by a solid figure.

  20. Concept

  21. π π . Use a calculator. Find Surface Area and Volume Find the surface area and volume of the cone. Example 2

  22. Volume of a cone r = 3, h = 4 Simplify. Use a calculator. Find Surface Area and Volume Answer: The cone has a surface area of about 75.4 cm2 and a volume of about 37.7 cm3. Example 2

  23. Find the surface area and volume of the triangular prism. Example 2

  24. A. Jenny has some boxes for shipping merchandise. Each box is in the shape of a rectangular prism with a length of 18 inches, a width of 14 inches, and a height of 10 inches. Find the surface area and volume of the box. Example 3

  25. Do p. 71 19, 22, 23, 38

  26. Chapter 1 Test Monday • Skills Review – Packet Activity You may write on the Skills Review Sheet. Rules: You must do at least one problem from each skill per lesson. You have 10 minutes per round. We will do about 3 rounds. Finish the packet for HW.

  27. Period 02 – SKILLS REVIEW roup 1 Group 2 Group 3 Group 4 Group 1 Group 2 Group 3 Group 4 Lesson 1-1 Lesson 1-2 Lesson 1-3 Lesson 1-4 Group 5 Group 6 Group 7 Group 8 Lesson 1-5 Lesson 1-6 Lesson 1-7 Lesson 1-8

  28. Period 08 – SKILLS REVIEW Choose your seat roup 1 Group 2 Group 3 Group 4 Group 1 Group 2 Group 3 Group 4 Lesson 1-1 Lesson 1-2 Lesson 1-3 Lesson 1-4 Group 5 Group 6 Group 7 Group 8 Lesson 1-5 Lesson 1-5 Lesson 1-6 Lesson 1-7

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