Name _ 6 Lesson 7 - Perimeters of Apr. Polygons.

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Presentation transcript:

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

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

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

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

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

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

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

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

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

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

Name____ Perimeter Formulas 6__

ShapeDrawing Formula

Name____ Perimeter Formulas 6__ ShapeDrawing Formula a. 5b.

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

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

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

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

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

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

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

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

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

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

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

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 = P = cm = 9.5cm = 8.7 cm

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 = cm P = cm = 9.5cm = 8.7 cm No, you can’t write a rule for these polygons because all sides are different lengths.

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 = cm P = cm = 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 =

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 = cm P = cm = 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.