A compound shape is made up of several simple 2D shapes. To calculate the perimeter, label and add up the length of each side. This shape is made from two rectangles ... Add up all the sides ...

The perimeter is the total distance around the edge of a 2D shape. Examples of units of distance are millimetres (mm), centimetres (cm) and metres (m). The perimeter of any 2D shape can be found ...

For most of us, or perhaps all of us, it's impossible to ... which can see only a slice of the sphere, the shape before him is that of a two-dimensional circle. The sphere has visited the square ...