1. Name _____ 6__ Lesson 7 - Perimeters of Apr.__ Polygons

2. Name _____Lesson 7 - Perimeters of Gr. 6__ Polygons Objective: to develop and apply formulas to determine the perimeters of polygons.

3. Name _____Lesson 7 - Perimeters of Gr. 6__ Polygons EXPLORE

4. Name _____Lesson 7 - Perimeters of Gr. 6__ Polygons EXPLORE

5. Name _____Lesson 7 - Perimeters of Gr. 6__ Polygons EXPLORE

6. Name _____Lesson 7 - Perimeters of Gr. 6__ Polygons EXPLORE

7. Name _____Lesson 7 - Perimeters of Gr. 6__ Polygons EXPLORE

8. Name _____Lesson 7 - Perimeters of Gr. 6__ Polygons EXPLORE

9. Name _____Lesson 7 - Perimeters of Gr. 6__ Polygons EXPLORE P = 4cm P = 8cm P = 6cm P = 12cm P = 9cm P = 13cm P = 7cm P = 8cm P = 16cm P = 12cm P = 10cm P = 11cm

10. Name _____Lesson 7 - Perimeters of Gr. 6__ Polygons EXPLORE For rules (or formulas) to calculate the perimeter, See next page.

11. Name____ Perimeter Formulas 6__

12. ShapeDrawing Formula

13. Name____ Perimeter Formulas 6__ ShapeDrawing Formula 1. 2. 3. 4. 5a. 5b.

14. Name____ Perimeter Formulas 6__ ShapeDrawing Formula 1. Equilateral Triangle 2. Square or Rhombus 3. Pentagon 4. Hexagon 5a. Rectangle 5b. Parallelo- gram

15. Name____ Perimeter Formulas 6__ ShapeDrawing Formula 1. Equilateral Triangle 2. Square or Rhombus 3. Pentagon 4. Hexagon 5a. Rectangle 5b. Parallelo- gram

16. Name____ Perimeter Formulas 6__ ShapeDrawing Formula 1. Equilateral P = l X 3 Triangle 2. Square or Rhombus 3. Pentagon 4. Hexagon 5a. Rectangle 5b. Parallelo- gram

17. Name____ Perimeter Formulas 6__ ShapeDrawing Formula 1. Equilateral P = l X 3 Triangle 2. Square P = l X 4 or Rhombus 3. Pentagon 4. Hexagon 5a. Rectangle 5b. Parallelo- gram

18. Name____ Perimeter Formulas 6__ ShapeDrawing Formula 1. Equilateral P = l X 3 Triangle 2. Square P = l X 4 or Rhombus 3. Pentagon P = l X 5 4. Hexagon 5a. Rectangle 5b. Parallelo- gram

19. Name____ Perimeter Formulas 6__ ShapeDrawing Formula 1. Equilateral P = l X 3 Triangle 2. Square P = l X 4 or Rhombus 3. Pentagon P = l X 5 4. Hexagon P = l X 6 5a. Rectangle 5b. Parallelo- gram

20. Name____ Perimeter Formulas 6__ ShapeDrawing Formula 1. Equilateral P = l X 3 Triangle 2. Square P = l X 4 or Rhombus 3. Pentagon P = l X 5 4. Hexagon P = l X 6 5a. RectangleP = ( l + w ) X2 or P = 2 l + 2 w 5b. Parallelo- gram

21. Name____ Perimeter Formulas 6__ ShapeDrawing Formula 1. Equilateral P = l X 3 Triangle 2. Square P = l X 4 or Rhombus 3. Pentagon P = l X 5 4. Hexagon P = l X 6 5a. RectangleP = ( l + w ) X2 or P = 2 l + 2 w 5b. Parallelo-P = ( l + w ) X2 gram or P = 2 l + 2 w

22. Name _____Lesson 7 - Perimeters of Gr. 6__ Polygons PRACTICE - Page 229 #1, #3, #5

23. Name _____Lesson 7 - Perimeters of Gr. 6__ Polygons PRACTICE - Page 229 #1, #3, #5 #1a) 8cm b) 6cm 3cm 3cm 2cm 2cm 6cm #1c) 2cm d) 6cm 2.5cm 2.5cm 5cm 5cm

24. Name _____Lesson 7 - Perimeters of Gr. 6__ Polygons PRACTICE - Page 229 #1, #3, #5 #1a) 8cm b) 6cm 3cm 3cm 2cm 2cm 6cm P = 2 X ( l + w)P = 2 X (l +w) = 2 X (8cm + 3cm) = 2 X (6cm +2cm) = 2 X 11cm = 22cm = 2 X 8cm = 16cm #1c) 2cm d) 6cm 2.5cm 2.5cm 5cm 5cm P = 2cm + 5cm + (2X2.5cm)P = 5cm + (2X6cm) = 2cm + 5cm + 5cm = 5cm + 12cm = 12cm = 17cm

25. Name _____Lesson 7 - Perimeters of Gr. 6__ Polygons PRACTICE - Page 229 #1, #3, #5 #1a) 8cm b) 6cm 3cm 3cm 2cm 2cm 6cm P = 2 X ( l + w)P = 2 X (l +w) = 2 X (8cm + 3cm) = 2 X (6cm +2cm) = 2 X 11cm = 22cm = 2 X 8cm = 16cm #1c) 2cm d) 6cm 2.5cm 2.5cm 5cm 5cm P = 2cm + 5cm + (2X2.5cm)P = 5cm + (2X6cm) = 2cm + 5cm + 5cm = 5cm + 12cm = 12cm = 17cm #3a) 4cm b) 3.7cm 2.5cm 3cm 1.5cm 2.5cm 1cm P = 2.5 + 4 + 3P = 1.5 + 3.7 + 2.5 + 1cm = 9.5cm = 8.7 cm

26. Name _____Lesson 7 - Perimeters of Gr. 6__ Polygons PRACTICE - Page 229 #1, #3, #5 #1a) 8cm b) 6cm 3cm 3cm 2cm 2cm 6cm P = 2 X ( l + w)P = 2 X (l +w) = 2 X (8cm + 3cm) = 2 X (6cm +2cm) = 2 X 11cm = 22cm = 2 X 8cm = 16cm #1c) 2cm d) 6cm 2.5cm 2.5cm 5cm 5cm P = 2cm + 5cm + (2X2.5cm)P = 5cm + (2X6cm) = 2cm + 5cm + 5cm = 5cm + 12cm = 12cm = 17cm #3a) 4cm b) 3.7cm 2.5cm 3cm 1.5cm 2.5cm 1cm P = 2.5 + 4 + 3cm P = 1.5 + 3.7 + 2.5 + 1cm = 9.5cm = 8.7 cm No, you can’t write a rule for these polygons because all sides are different lengths.

27. Name _____Lesson 7 - Perimeters of Gr. 6__ Polygons PRACTICE - Page 229 #1, #3, #5 #1a) 8cm b) 6cm 3cm 3cm 2cm 2cm 6cm P = 2 X ( l + w)P = 2 X (l +w) = 2 X (8cm + 3cm) = 2 X (6cm +2cm) = 2 X 11cm = 22cm = 2 X 8cm = 16cm #1c) 2cm d) 6cm 2.5cm 2.5cm 5cm 5cm P = 2cm + 5cm + (2X2.5cm)P = 5cm + (2X6cm) = 2cm + 5cm + 5cm = 5cm + 12cm = 12cm = 17cm #3a) 4cm b) 3.7cm 2.5cm 3cm 1.5cm 2.5cm 1cm P = 2.5 + 4 + 3cm P = 1.5 + 3.7 + 2.5 + 1cm = 9.5cm = 8.7 cm No, you can’t write a rule for these polygons because all sides are different lengths. #5) P = 6 X s = 40cm X 6 =

28. Name _____Lesson 7 - Perimeters of Gr. 6__ Polygons PRACTICE - Page 229 #1, #3, #5 #1a) 8cm b) 6cm 3cm 3cm 2cm 2cm 6cm P = 2 X ( l + w)P = 2 X (l +w) = 2 X (8cm + 3cm) = 2 X (6cm +2cm) = 2 X 11cm = 22cm = 2 X 8cm = 16cm #1c) 2cm d) 6cm 2.5cm 2.5cm 5cm 5cm P = 2cm + 5cm + (2X2.5cm)P = 5cm + (2X6cm) = 2cm + 5cm + 5cm = 5cm + 12cm = 12cm = 17cm #3a) 4cm b) 3.7cm 2.5cm 3cm 1.5cm 2.5cm 1cm P = 2.5 + 4 + 3cm P = 1.5 + 3.7 + 2.5 + 1cm = 9.5cm = 8.7 cm No, you can’t write a rule for these polygons because all sides are different lengths. #5) P = 6 X s = 40cm X 6 = 240cm = 2.4m The perimeter of the base of the skylight is 2.4m.