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Area and Perimeter

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**The area of a shape is the amount of space inside it.**

To find out how much shape is inside we can count the squares. The area of a shape is the amount of space inside it. The area of the shape is 18cm2.

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**To work out the number of squares**

The rectangle is made of 6 rows of 8 squares. To work out the number of squares we times 6 by 8. Counting each square can take a long time. Does anyone know a quicker way? The area of the shape is 48cm2.

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**We can work out the area of a rectangle**

without the grid. length Area = length x width width

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3 x 6 = 18cm2 4 x 5 =20cm2 What is the area of each of these shapes? Check each answer by left clicking. 5 x 6 = 30cm2 7 x 2 = 14cm2 2 x 11 = 22cm2

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**Now work out the area of these rectangles.**

They are not drawn to scale. 7cm 5cm 35cm2 5cm 20cm2 4cm 9cm 36cm2 12.5cm 4cm 2cm 25cm2

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