Discover how to work out the area of a 2D shape, by adding the length of its sides together. Perimeter on a grid Find out about perimeter, the distance around a 2D shape, and how to work it out on ...

Now it’s time to step into the future with more memory and talk about what modern 2D games still do to ... the closer you can get to a perfect circle. More complex shapes, like text, polygons ...

A square and a rectangle, a circle and a triangle. BOY: If you’re looking for a square, you can see them everywhere. Images of the shapes appear as they are mentioned in the song. BOY ...