Calculate the area of the following shape. A six-sided shape in which all the corners are marked as right angles and which, overall, resembles a rectangle with its top right-hand corner removed. The lengths of four adjacent sides are marked. The bottom side is 2.0 metres, the left side is 2.0 metres, the bottom right side is 1.0 metres and the top left side is 1.0 metres. The other two sides are not marked. Enter the number of square metres in the box below. (Your answer should be a number, without units.)