1. Homework Helper Chapter 12 Lesson 12.1 1.2 triangles, 2 squares 2.2 rectangles and square 3.Possible answer: 3 sides; 3 vertices 4.Possible answer: shapes with 3 and 4 vertices Lesson Check/Spiral Review 1.Circle 2.Triangle 3.Shorter

2. Homework Helper Chapter 12 Lesson 12.2 1. 6 sides 6 vertices 2. 4 sides 4 vertices 3. 4 sides 4 vertices 4. 3 sides 3 vertices

3. Homework Helper Chapter 12 Lesson 12.2 continued 5. Lesson Check/Spiral Review 1.3 vertices 2.4 vertices 3.Circle “9”. Sum is 11 4.4

4. Homework Helper Chapter 12 Lesson 12.3 1.3 2.2 3.8 4.Possible answer: 2 squares Lesson Check/Spiral Review 1.6 2.3 3.First string 4.5:00

5. Homework Helper Chapter 12 Lesson 12.4 1.First shape, third shape 2.First shape, third shape 3. 4. Possible answer: Lesson Check/Spiral Review 1.Second shape 2.3 3.7 =

6. Homework Helper Chapter 12 Lesson 12.5 1. 2. Possible answer Lesson Check/Spiral Review 1.Rectangle 2.Sphere 3.Circle

7. Homework Helper Chapter 12 Lesson 12.6 1.Third and fourth set of shapes 2.First and second set of shapes 3.Possible answer: 2 1 0 0 4.Possible answers: 2 trapezoids, 6 triangles Lesson Check/Spiral Review 1.Second set of shapes 2.2:30 3. 4.4

8. Homework Helper Chapter 12 Lesson 12.7 1. 2. 3.4 small triangles, 1 large triangle = 5 triangles 4. 1 square = 2 rectangles Lesson Check/Spiral Review 1.First set of shapes 2.2 children 3.First set of shapes

9. Homework Helper Chapter 12 Lesson 12.8 1.Second shape, third shape 2.First shape, second shape 3.Possible answer: 4.Possible answer: Lesson Check/Spiral Review 1.Second Shape 2.Pancakes 3.4

10. Homework Helper Chapter 12 Lesson 12.9 1., 2., 3., 5. 7.Possible answer: half of 8.Possible answer: Lesson Check/Spiral Review 1.First shape 2.Second set of shapes 3.Third shape 4.3

11. Homework Helper Chapter 12 Lesson 12.10 2., 3., 4., 6. 7.Second shape 8.Possible answer: Lesson Check/Spiral Review 1.Third shape 2.Third shape, fourth shape 3.2