square
A square is the regular 4-gon, that is, a quadrilateral
whose 4 angles and 4 sides are respectively equal. Each angle of a square must be a right angle
.
This implies a square is a parallelogram
that is both a rhombus
and a rectangle
at the same time.
Notice, however, that if a quadrilateral has its 4 sides equal, we cannot generally say it is a square, since it might be a rhombus as well.
If is the length of a side, the diagonals of a square (which are equal since it’s a rectangle too) have length .
| Title | square |
| Canonical name | Square |
| Date of creation | 2013-03-22 12:02:32 |
| Last modified on | 2013-03-22 12:02:32 |
| Owner | drini (3) |
| Last modified by | drini (3) |
| Numerical id | 7 |
| Author | drini (3) |
| Entry type | Definition |
| Classification | msc 51-00 |
| Related topic | Quadrilateral |
| Related topic | Parallelogram |
| Related topic | Rectangle |
| Related topic | Rhombus |
| Related topic | ParallelogramLaw |
| Related topic | RegularPolygon |