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10-8

Finding Volume. 10-8. Course 1. HOMEWORK & Learning Goal. 10-7 Lesson Quiz. Lesson Presentation. Surface Area. 10-7. Course 1. Insert Lesson Title Here. Lesson Quiz. Find the surface area of each figure. Use 3.14 for  .

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10-8

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  1. Finding Volume 10-8 Course 1 HOMEWORK & Learning Goal 10-7 Lesson Quiz Lesson Presentation

  2. Surface Area 10-7 Course 1 Insert Lesson Title Here Lesson Quiz Find the surface area of each figure. Use 3.14 for . 1. rectangular prism with base length 6 ft, width 5 ft, and height 7 ft 2. cylinder with radius 3 ft and height 7 ft 3. Find the surface area of the figure shown. 214 ft2 188.4 ft2 208 ft2

  3. Surface Area 10-7 Course 1 6th HOMEWORK Answers Page 532 #1-6

  4. Finding Volume 10-8 Course 1 6th Grade Math HOMEWORK Page 536 #1-6

  5. Our Learning Goal Students will be able to find the perimeter and area of polygons; find the area and circumference of circles and find the surface area and volume of 3D shapes.

  6. Our Learning Goal Assignments • Learn to find the perimeter and missing side lengths of a polygon. • Learn to estimate the area of irregular figures and to find the area of rectangles, triangles, and parallelograms. • Learn to break a polygon into simpler parts to find its area. • Learn to make a model to explore how area and perimeter are affected by changes in the dimensions of a figure. • Learn to identify the parts of a circle and to find the circumference and area of a circle. • Learn to name solid figures. • Learn to find the surface areas of prisms, pyramids, and cylinders. • Learn to estimate and find the volumes of rectangular prisms and triangular prisms. • Learn to find volumes of cylinders.

  7. Finding Volume 10-8 Course 1 Today’s Learning Goal Assignment Learn to estimate and find the volumes of rectangular prisms and triangular prisms.

  8. Finding Volume 10-8 Course 1 Insert Lesson Title Here Vocabulary volume

  9. Finding Volume 10-8 Course 1 Volume is the number of cubic units needed to fill a space.

  10. Finding Volume 10-8 Course 1 It takes 10, or 5 · 2, centimeter cubes to cover the bottom layer of this rectangular prism. There are 3 layers of 10 cubes each. It takes 30, or 5 · 2 · 3, cubes to fill the prism. The volume of the prism is 5 cm · 2 cm · 3 cm = 30 cm3.

  11. Finding Volume 10-8 Course 1 Additional Example 1: Finding the Volume of a Rectangular Prism Find the volume of the rectangular prism. 13 in. 11 in. 26 in. V = lwh Write the formula. V = 26•11•13 l = 26; w = 11; h = 13 V = 3,718 in3 Multiply.

  12. Finding Volume 10-8 Course 1 Try This: Example 1 Find the volume of the rectangular prism. 16 in. 12 in. 29 in. V = lwh Write the formula. V = 29•12•16 l = 29; w = 12; h = 16 V = 5,568 in3 Multiply.

  13. Finding Volume 10-8 Course 1 To find the volume of any prism, you can use the formula V= Bh, where B is the area of the base, and h is the prism’s height. So, to find the volume of a triangular prism, B is the area of the triangular base and h is the height of the prism.

  14. Finding Volume 10-8 1 1 __ __ 2 2 V = Bh Write the formula. V = ( •3.9•1.3) •4 B = •3.9•1.3; h = 4. Course 1 Additional Example 2A: Finding the Volume of a Triangular Prism Find the volume of each triangular prism. A. V = 10.14 m3 Multiply.

  15. Finding Volume 10-8 1 1 __ __ 2 2 V = 23.52 m3 Multiply. V = Bh V = ( •4.2•1.6) •7 B = •4.2•1.6; h = 7. Write the formula. Course 1 Try This: Example 2A Find the volume of each triangular prism. A. 7 m 1.6 m 4.2 m

  16. Finding Volume 10-8 1 1 __ __ 2 2 3 Write the formula. B = •6.5•7; h = 6. V = Bh Multiply. V = 136.5 ft V = ( •6.5•7) •6 Course 1 Additional Example 2B: Finding the Volume of a Triangular Prism Find the volume of the triangular prism. B.

  17. Finding Volume 10-8 1 1 __ __ 2 2 V = 101.25 ft3 Multiply. V = Bh V = ( •4.5•9) •5 B = •4.5•9; h = 5. Write the formula. Course 1 Try This: Example 2B Find the volume of each triangular prism. B. 9 ft 5 ft 4.5 ft

  18. Finding Volume 10-8 1 Understand the Problem Course 1 Additional Example 3: Problem Solving Application Suppose a facial tissue company ships 16 cubic tissue boxes in each case. What are the possible dimensions for a case of tissue boxes? • The answer will be all possible dimensions for a case of 16 cubic boxes. • List the important information: • There are 16 tissue boxes in a case. • The boxes are cubic, or square prisms.

  19. Finding Volume 10-8 Make a Plan 2 Course 1 Additional Example 3 Continued You can make models using cubes to find the possible dimensions for a case of 16 tissue boxes.

  20. Finding Volume 10-8 3 Solve Course 1 Additional Example 3 Continued You can make models using cubes to find the possible dimensions for a case of 16 cubes. The possible dimensions for a case of 16 cubic tissue boxes are the following: 1 • 1 • 16, 1 • 2 • 8, 1 • 4 • 4, and 2 • 2 • 4 .

  21. Finding Volume 10-8 4 Course 1 Additional Example 3 Continued Look Back Notice that each dimension is a factor of 16. Also, the product of the dimensions (length • width • height) is 16, showing that the volume of each case is 16 cubes.

  22. Finding Volume 10-8 1 Understand the Problem Course 1 Try This: Example 3 Suppose a paper company ships 12 cubic boxes of envelopes in each case. What are the possible dimensions for a case of envelope boxes? • The answer will be all possible dimensions for a case of 12 cubic boxes. • List the important information: • There are 12 envelope boxes in a case. • The boxes are cubic, or square prisms.

  23. Finding Volume 10-8 Make a Plan 2 Course 1 Try This: Example 3 Continued You can make models using cubes to find the possible dimensions for a case of 12 boxes of envelopes.

  24. Finding Volume 10-8 3 Solve Course 1 Try This: Example 3 Continued You can make models using cubes to find the possible dimensions for a case of 12 cubes. The possible dimensions for a case of 24 cubic envelope boxes are the following: 1 • 1 • 12, 1 • 2 • 6, 1 • 3 • 4, and 2 • 2 • 3.

  25. Finding Volume 10-8 4 Course 1 Try This: Example 3 Continued Look Back Notice that each dimension is a factor of 12. Also, the product of the dimensions (length • width • height) is 12, showing that the volume of each case is 12 cubes.

  26. Finding Volume 10-8 3,600 cm3 153.3 cm3 38.13 cm3 Course 1 Insert Lesson Title Here Lesson Quiz Find the volume of each figure. 1. rectangular prism with length 20 cm, width 15 cm, and height 12 cm 2. triangular prism with a height of 12 cm and a triangular base with base length 7.3 cm and height 3.5 cm 3. Find the volume of the figure shown.

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