To calculate the perimeter, label and add up the length of each side. This shape is made from two rectangles. What is the perimeter of this shape? First, calculate the missing lengths \(x\) and \(y\).

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 ...

Being two-dimensional, the inhabitants of Flatland appear as lines to one another. They discern one another's shape both by touching and by seeing how the lines appear to change in length as the ...

Features Dudley Moore! "Flatland" explores a two-dimensional world inhabited by geometric shapes, where social hierarchy is ...

Say you want to move a two-dimensional shape — your sofa (disregarding its height) — through an L-shaped hallway. For simplicity, assume the hallway is one unit wide. What’s the size of the largest ...