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Area & Perimeter Primary 4 Mathematics
Chapter Learning Outcomes ,[object Object],[object Object]
Rectangles and Squares: Perimeter and Area This is a rectangle. We can label the sides as its length and breadth.
Rectangles and Squares: Perimeter and Area This is a square. We can label the sides as its length and breadth; all 4 sides are equal.
Rectangles and Squares: Perimeter and Area The perimeter of a rectangle or square is the sum of all of its 4 sides.
Rectangles and Squares: Perimeter and Area Perimeter of rectangle  = Length + Length +  Breadth + Breadth Perimeter of square = 4 x Length
Rectangles and Squares: Perimeter and Area The area of a rectangle or square is the product of its length and breadth.
Rectangles and Squares: Perimeter and Area Area of rectangle or square = Length x Breadth
Example ,[object Object],Length of wire = Perimeter of frame = 16 cm + 16 cm + 9 cm + 9 cm = 50 cm The wire was 50 cm long.
Example ,[object Object],Area of square = 4 x Length = 4 x 12 cm = 48  cm 2 The piece of cloth had an area of 48 cm 2 .
Composite Figures: Perimeter and Area This composite figure can be broken down into a square and a rectangle. I can break it down into two rectangles.
Example ,[object Object],BC = AF – DE = 5 cm CD = FE – AB = 7 cm Perimeter = 5 cm + 7 cm + 25  cm + 22 cm + 32 cm + 17 cm = 108 cm
Example ,[object Object],BC = AF – DE = 5 cm CD = FE – AB = 7 cm Area = (25 cm x 5 cm) + (32 cm x 17 cm) = 125 cm 2  + 544  cm 2 = 669  cm 2
Example ,[object Object],Perimeter = 23 m + 13  m  + 6  m  + 6  m  + 11  m  + 6  m  + 6  m  + 13  m  = 84 m
Example ,[object Object],13 m – 6 m = 7 m Area = (23 m x 6 m) + (6 m x 6 m) + (6 m x 6 m) = 138 m 2  + 36  m 2   + 36  m 2   = 210  m 2
Reference -  Textbooks Learning Outcomes Rectangles and squares 4B Pg 98 – 104  4B Pg 100 – 104  Composite figures 4B Pg 105 – 116  4B Pg 105 – 111

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P4 Area and Perimeter

  • 1. Area & Perimeter Primary 4 Mathematics
  • 2.
  • 3. Rectangles and Squares: Perimeter and Area This is a rectangle. We can label the sides as its length and breadth.
  • 4. Rectangles and Squares: Perimeter and Area This is a square. We can label the sides as its length and breadth; all 4 sides are equal.
  • 5. Rectangles and Squares: Perimeter and Area The perimeter of a rectangle or square is the sum of all of its 4 sides.
  • 6. Rectangles and Squares: Perimeter and Area Perimeter of rectangle = Length + Length + Breadth + Breadth Perimeter of square = 4 x Length
  • 7. Rectangles and Squares: Perimeter and Area The area of a rectangle or square is the product of its length and breadth.
  • 8. Rectangles and Squares: Perimeter and Area Area of rectangle or square = Length x Breadth
  • 9.
  • 10.
  • 11. Composite Figures: Perimeter and Area This composite figure can be broken down into a square and a rectangle. I can break it down into two rectangles.
  • 12.
  • 13.
  • 14.
  • 15.
  • 16. Reference - Textbooks Learning Outcomes Rectangles and squares 4B Pg 98 – 104 4B Pg 100 – 104 Composite figures 4B Pg 105 – 116 4B Pg 105 – 111