We are said that the real world in which humans live is present in three dimensions or four dimensions. "Three-dimensional" is a relatively easy-to-understand concept for people who live while ...

When most people think of shapes, they imagine a triangle, a rectangle, or maybe even a fancier-sounding rhombus or trapezoid. But to mathematicians, shapes encompass a vast universe of surprising ...

The surface area of a cuboid can be calculated by adding together the areas of the six faces. The opposite faces of a cuboid are the same sized rectangles, so find the total area of the three ...

Can you imagine the imprint a four-dimensional hexagon might leave as it passes through your three-dimensional kitchen table? Probably not, but some people can. One such person was mathematician ...

2D shapes are flat, plane shapes. Triangles have three sides and three angles that add up to 180°. Quadrilaterals have four sides and four angles that add up to 360°. Constructing triangles Learn how ...

If you can ever peer beyond three dimensions, you will be able to see wondrous things: hyperdimensional jewels; shapes made of cubes and spheres arranged in mind-boggling formations. These beautiful ...

Microwaves can be seen being blocked and scattered without (l), and "reconstructed" (r) with the cloak Researchers have "cloaked" a three-dimensional object, making it invisible from all angles, for ...

Producing three-dimensional objects at very small scales with precision has often been a difficulty for engineers. Especially in the medical devices field, such objects could have great utility, but ...