Area and perimeter are different

ways of measuring a shape.

The area is the amount of space

inside the shape.

The perimeter is the distance around the edge.

This field is a rectangle.

It is 4 metres long and 3 metres wide.We can find out the area of a rectangle by multiplying the

length by the width.

4 x 3 = 12

4m

3mSo the areaof the field is

12 square metres.

We can write this as 12m2.These measurements are called the shape’s

dimensions.

Thismeans‘squared’.

Some shapes are

made by joining

two or more shapes

together. These are

called compound

(or composite)

shapes.

6m

4m

3m

5m

3m

9m

To find the perimeter, add the

lengths of ALL of the sides.

Make sure that you don’t miss any!

6 + 5 + 3 + 4 + 3 + 9 = 30m

To find the area, split the compound shape into smaller

shapes. Work out the area of each part and then find the total.

6x5=30m2

3x4=12m2 4m

3m

5m

6m

The area of this compound shape is:

30 + 12 = 42m2.

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1 2

3 4

What is the area of this shape? What is the area of this shape?

What is the area of this shape? What is the area of this shape?

5cm

5cm

6cm

6cm

8cm

5cm

8cm

3cm

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17 18

19 20

Draw a square with an area of 9cm2. Draw a square with an area of 25cm2.

Draw a rectangle with an area of 40cm2. Draw a rectangle with an area of 32cm2.

1cm 1cm

1cm 1cm

PerimeterPerimeterPerimeterPerimeter

PerimeterPerimeterPerimeterPerimeterPerim

eter

Perim

eter

Perimeter

Perimeter

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The area is the amount of space inside a shape.

The perimeter is the distance around the outside of the shape.

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Can you calculate the area and perimeter of these rectangles?

1.

5 cm

7 cm

2.

6 cm

5 cm

3.

16 cm

9 cm

4.

10 cm

9 cm

5.

11 cm

9 cm

6.

9 cm

8 cm

7.

9 cm

12 cm

8.

8 cm

13 cm

9.

8 cm

9 cm

10.

10 cm

12 cm

11.

5 cm

5 cm

12.

15 cm

18 cm

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I need a new field for my sheep. It must:• be rectangular,• have a perimeter

of 14 metres.

How many different designs can you find? What is the area of each design?

1m

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©

Can you work out the area and perimeter of each body part?

BodyPart

Area (cm2) Perimeter (cm)

Head

Body

Arm

Leg

This robot is called Robson.

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©

I own a vineyard. I measure the dimensions of my fields so that I can fit in as many vines as possible.

I also work out the size of the perimeter fence.

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