The area of each square is 1 cm 2. There are 12 squares contained in this rectangle. The area of the rectangle is 12 cm 2. The area of a rectangle can also be calculated using the following formula.

This shape is drawn on a centimetre square grid. Work out the area of the shape. What is the area of this shape, if the area of each grid square is 1 cm 2? There are 10 squares contained in this shape ...