1. Extension

2. Calculate the area and perimeter of each of these shapes. 5cm 9cm 3cm 2cm 10cm 7cm 1cm 7cm 2cm 12cm 13cm 1 2 3

3. Calculate the area and perimeter of the following: 12cm 5cm 13cm 8cm 10cm 11cm 7cm 4cm 15cm 13cm

4. Area Area of a triangle = ½ x base x height Area of a parallelogram = base x perpendicular height base height base height base height

5. 4cm 5cm 6cm 8cm 10cm 5cm 4cm 9cm 7cm 10cm 8m 11m 9m 8m C 1 2 3 4 5 10m 15m 4m 5m A B D 9 3cm 4cm 7cm 5cm 4cm3cm 2cm 5cm 3cm 4cm 2cm 5cm 7cm 7 8 6 10 Calculate the area of the following shapes. In Q9, calculate the shaded area. 11cm

6. Area of Trapezia

7. Trapezium Area = ½ (a + b) x h a and b are the parallel sides h is the perpendicular height between the two parallel sides a b h

8. Trapezium Example: 2cm 16cm 12cm 14cm Area = ½ (a + b) x h Area = ½ (2 + 16) x 12 Area = x 12 Area = 108cm 2 18 2

9. Trapezium Calculate the area and perimeter of these trapezia 15cm 9cm 11cm 7cm 6cm 5m 14m 7m 18m