3. In the following table, posters 1 and 2 have the same perimeter, posters 3 and 4 have the same perimeter and posters 5 and 6 have the same perimeter. See how their areas compare by working out the missing dimensions and then calculating their area.
Poster 1 2 3 4 5 6
Perimeter 156cm 156cm 244cm 244cm 272cm 272cm
Area
Length Width 43cm
29cm 56cm
74cm 62cm
86cm
4. Work out the area and perimeter of these unusual shapes. 26cm
8cm 8cm 18cm 9cm 11cm 27cm 8cm 8cm 23cm
5. Work out the surface areas of these cubes. Cube 1