AREA AND PERIMETRE

1 cm = 1 flower petal width.

20 cm SQUARED = circles and
crosses

10 cm = bottom of sandpit toy.

10cm or larger = length = mouse
than 10 cm and width = smaller
than 10 cm (Mouse Pad).

1 3rd of a metre (33 cm and 3 mm)
= medium sized cardboard box

4 cm wide = small stone