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**Copyright Tim Morris/St Stephen's School**

Area of a Rectangle This is one in a series of Powerpoint slideshows to illustrate how to calculate the area of various 2-D shapes. Start with the Rectangle, then move onto the Parallelogram. After that select any of Triangle, Trapezium and Circle. Please feel free to copy and modify any of these slide shows, but make sure you acknowledge the author when doing so. Copyright Tim Morris/St Stephen's School

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**Copyright Tim Morris/St Stephen's School**

RECTANGLE What is the area of this rectangle? W=width Copyright Tim Morris/St Stephen's School

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**DIVIDE IT UP INTO SQUARES!**

RECTANGLE What is the area of this rectangle? H=height W=width DIVIDE IT UP INTO SQUARES! Copyright Tim Morris/St Stephen's School

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**CHOOSE STANDARD SIZE SQUARE!**

RECTANGLE What is the area of this rectangle? H=height W=width CHOOSE STANDARD SIZE SQUARE! Copyright Tim Morris/St Stephen's School

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**CHOOSE STANDARD SIZE SQUARE!**

RECTANGLE What is the area of this rectangle? 7 14 21 28 35 42 49 56 63 6 13 20 27 34 41 48 55 62 5 12 19 26 33 40 47 54 61 H=height 4 11 18 25 32 39 46 52 60 3 10 17 24 31 38 45 52 59 2 9 16 23 30 37 44 51 58 1 8 15 22 29 36 43 50 57 W=width CHOOSE STANDARD SIZE SQUARE! Copyright Tim Morris/St Stephen's School

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**Copyright Tim Morris/St Stephen's School**

RECTANGLE What is the area of this rectangle? 7 14 21 28 35 42 49 56 63 6 13 20 27 34 41 48 55 62 5 12 19 26 33 40 47 54 61 H=height 4 11 18 25 32 39 46 52 60 3 10 17 24 31 38 45 52 59 2 9 16 23 30 37 44 51 58 1 8 15 22 29 36 43 50 57 W=width COUNT THE SQUARES…63 Copyright Tim Morris/St Stephen's School

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**AREA = 63 STANDARD SQUARES**

RECTANGLE What is the area of this rectangle? 7 14 21 28 35 42 49 56 63 6 13 20 27 34 41 48 55 62 5 12 19 26 33 40 47 54 61 H=height 4 11 18 25 32 39 46 52 60 3 10 17 24 31 38 45 52 59 2 9 16 23 30 37 44 51 58 1 8 15 22 29 36 43 50 57 W=width AREA = 63 STANDARD SQUARES Copyright Tim Morris/St Stephen's School

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**BUT THERE IS ANOTHER WAY!**

RECTANGLE 7 What is the area of this rectangle? 6 5 H=height 4 3 2 1 W=width BUT THERE IS ANOTHER WAY! Copyright Tim Morris/St Stephen's School

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**Copyright Tim Morris/St Stephen's School**

RECTANGLE 7 What is the area of this rectangle? 6 5 H=height 4 3 2 1 W=width COUNT THE ROWS…7 Copyright Tim Morris/St Stephen's School

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**Copyright Tim Morris/St Stephen's School**

RECTANGLE What is the area of this rectangle? 7 6 5 H=height 4 3 2 1 2 3 4 5 6 7 8 9 W=width COUNT THE COLUMNS…9 Copyright Tim Morris/St Stephen's School

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**THERE ARE 7 ROWS OF 9 COLUMNS**

RECTANGLE What is the area of this rectangle? 7 6 5 H=height 4 3 2 1 2 3 4 5 6 7 8 9 W=width THERE ARE 7 ROWS OF 9 COLUMNS Copyright Tim Morris/St Stephen's School

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**THERE ARE 7 x 9 = 63 STANDARD SQUARES**

RECTANGLE What is the area of this rectangle? 7 6 5 H=height 4 3 2 1 2 3 4 5 6 7 8 9 W=width THERE ARE 7 x 9 = 63 STANDARD SQUARES Copyright Tim Morris/St Stephen's School

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**Copyright Tim Morris/St Stephen's School**

RECTANGLE 7 What is the area of this rectangle? 6 Arearectangle = Rows x Columns = Width x Height 5 H=height 4 3 2 1 2 3 4 5 6 7 8 9 W=width Copyright Tim Morris/St Stephen's School

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**Arearectangle = Width x Height**

(perpendicular height H) H=height W=width Copyright Tim Morris/St Stephen's School

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