Today I learned of the Parallelepiped, a 3-dimensional geometric object whose faces are all parallelograms. en.wikipedia.org/wiki/Par…
Today I learned about Pantograph, a simple mechanical device to scale drawings up or down AND change proportions using a parallelogram's geometry en.wikipedia.org/wiki/Pan…
The 3D equivalent of a parallelogram is called a parallelepiped. It is made of six parallelograms and its volume can be computed by a formula known as the triple scalar product, which is the product of the dot product and the cross product of its three vectors starting from the origin. en.wikipedia.org/wiki/Par…
If you connect the midpoints of any shape with four sides, you get a parallelogram. en.wikipedia.org/wiki/Var…

Please note that this site uses cookies to personalise content and adverts, to provide social media features, and to analyse web traffic. Click here for more information.