So this point right over here is the same distance from if we dropped a perpendicular to this point as this one right over here. A figure has point symmetry if it can be reflected across a point back on to itself. Simple tests to determine a figure has point symmetry it upside-down and see if it looks the same.
In geometry to translate a geometric figure is to move it from one place to another without rotating it.
These parts are also said to be symmetrical to each other. That explains why in physics the term P- symmetry P stands for parity is used for both point reflection and mirror symmetry. Three points A B and. Many letters of the English alphabet have a point symmetry.