This novel is a "first-person" account of a two-dimensional square who comes to appreciate a three-dimensional world. The square describes his world as a plane populated by lines, circles ...

This shape is drawn on a centimetre square grid. Work out the area of the shape ... 2\), \(4 \times 12 = 48~\text{cm}^2\) Add the three areas together. Calculate the area of the large rectangle.