1. Q. What do we mean by finding the perimeter of a shape? Q. What strategies might you use for calculating the perimeter of a rectangle?

2. – add together the lengths of the sides; – double the length, double the breadth and then adding these two answers together; – add together one length and one breadth and then double this answer. You could...

3. 1 5 4 2 3 3cm 1 cm 5.5m 4.5m 12 cm 25cm 19 mm 9mm 89 m 41 m Obviously they are not to scale!

4. Q Do you have to measure all the sides of a rectangle? Q What units of measurement might you use?

5. This is called a COMPOUND SHAPE because it is made up of different rectangles.

6. 15 – 10 = 5cm10 - 7 = 3cm

7. 15 + 10 + 5 + 3 +10 + 7 =

8. This is called a COMPOUND SHAPE because it is made up of different rectangles.

9. Q How do we work out the area of a shape? Length x width = area

10. 1 cm² What is the area of the shape?

11. 1 5 4 2 3 3cm 2 cm 5m 4m 3 cm 12cm 10 mm 9mm 8 m 4 m Obviously they are not to scale!

12. So what is the area of this compound shape? 16cm 10cm 8cm

13. So what is the area of this compound shape?

14. 4 cm 10 cm 7 cm 10 cm