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Pitch Perimeters WALT : calculate the perimeter of rectangles

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**What do we mean by the perimeter of a shape?**

The total length of all the sides 10cm 5cm Answer = 30cm

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**What strategies did you use to find your answer?**

Add all the sides together Double the length, double the width and add them together Add the length and width and double it

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Now try this one… 25cm 10cm

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And this one… 50m 25m

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**How do we find the missing lengths?**

10cm 5cm 20cm

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Perimeters worksheet In your maths book, draw each shape accurately (using a ruler). Then work out the perimeter and record it underneath the shape.

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Common errors…

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PERIMETERS What is the Perimeter of a shape. What is the Perimeter of this rectangle? What is the Perimeter of this rectangle? 5cm 15cm.

PERIMETERS What is the Perimeter of a shape. What is the Perimeter of this rectangle? What is the Perimeter of this rectangle? 5cm 15cm.

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