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Module 3 lesson 21

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Module 3 lesson 21

1. 1. Module 3 Lesson 21.notebook Module 3 Lesson 21 AIM: Surface Area February 24, 2014 Homework Problem Set 21 #1 and 5 Do Now Exit Ticket Lesson 20 1
2. 2. Module 3 Lesson 21.notebook February 24, 2014 2
3. 3. Module 3 Lesson 21.notebook February 24, 2014 3
4. 4. Module 3 Lesson 21.notebook February 24, 2014 4
5. 5. Module 3 Lesson 21.notebook February 24, 2014 Discussion: 1.) What is surface area? 2.) How do you find the surface area of a three dimensional object? Net: a two-dimensional representation of a three dimensional object 5
6. 6. Module 3 Lesson 21.notebook February 24, 2014 6
7. 7. Module 3 Lesson 21.notebook February 24, 2014 7
8. 8. Module 3 Lesson 21.notebook February 24, 2014 8
9. 9. Module 3 Lesson 21.notebook February 24, 2014 Discussion: 1.) Are the bottom and top faces of a right rectangular prism the bases of the prism? 2.) If we slice the right rectangular prism is half along a diagonal of a base, the two halves are called right triangular prisms. Why do you think they are called triangular prisms? 3.) Why must the triangular faces be the bases of these prisms? 9
10. 10. Module 3 Lesson 21.notebook February 24, 2014 10
11. 11. Module 3 Lesson 21.notebook February 24, 2014 11
12. 12. Module 3 Lesson 21.notebook February 24, 2014 12
13. 13. Module 3 Lesson 21.notebook February 24, 2014 Practice: The height of a right rectangular prism is 3.5 feet. The length and width of the prism's bases are 3 feet and 5.5 feet. Use the formula SA = LA + 2B to find the surface area of the right rectangular prism. 13
14. 14. Module 3 Lesson 21.notebook February 24, 2014 14
15. 15. Module 3 Lesson 21.notebook February 24, 2014 15