Capital letters A, M, T, U, V, W, and Y are vertically symmetrical; capital letters B, C, D, E, and K are horizontally symmetrical; capital letters H, I, and X are both horizontally and vertically symmetrical; and capital letter O is endlessly symmetrical. Thus, all capital letters are either completely symmetrical or partially symmetrical.
Dashes are used to indicate missing letters or words. For example, a-b-c indicates that letters a, b, and c are missing from the word background. Dashes can be used in alphabetizing names that contain these gaps. They also can be used when spelling out words that contain diacritics (accents and other markings used in languages other than English). Because of their frequency in names, dashes are important items to identify when building databases for name studies.
The number 2 is considered an essential element in names. There must be at least two characters in a name. If there is only one character, it must be a space between two words or parts of a word separated by a hyphen or some other punctuation mark. Names with only spaces or punctuation marks are called "single-word names." These are the most common names and they can be difficult to sort into categories based on meaning or origin.
Names can also be composed of only digits or only letters. These are called "digit names" and "letter names," respectively.
The uppercase letters H, I, O, and X all have symmetrical horizontal and vertical lines. These letters are called "symmetrical." The lowercase letters b, d, f, g, j, l, m, p, q, r, s, t, v, and w are also symmetrical.
Hence, all capitals are symmetrical.
The A has a vertical line of symmetry, whereas the B, C, D, and E have a horizontal line. Let's take a closer look at some more letters! J, K, L, N, and P have no symmetry lines. M has one line of symmetry, while H, I, and O all have two. Thus, I can be divided into two identical shapes that reflect each other about a central axis.
I am a symmetrical shape. I have point symmetry.
Symmetry is the property of being equal to itself after any possible rotation, translation, or reflection. In other words, if you rotate, translate, or reflect any object, it will still look like the same object with only one exception: its position in space has been changed. If two objects are mirror images of each other, they are said to have symmetric properties.
A thing is called symmetrical if it is equal to itself when rotated, translated, or reflected about a central point or axis. For example, the letter I is symmetrical because it is identical to itself when turned upside down or mirrored across its center. The number 1 is also symmetrical because it remains the same after being doubled in size or reduced to half its original size.
Asking whether or not something has symmetry is similar to asking whether or not it is a rotational object. If you rotate an object around its central point, it will always return to its original position.
B, C, D, E, H, I, K, O, and X are the letters exhibiting reflectional symmetry about a horizontal mirror. Any letter that is upright and has an even number of lines on its body can be used as a mirror image; for example, Q and Z. Letters that are inverted (such as P and T) or have an odd number of lines on their body do not reflect symmetrically about a horizontal mirror.
In mathematics, physics, and chemistry, a reflection is the reversal of an object's position and direction but with no change in scale. Reflections can be visualized as reflections of an object within another similar object (such as a mirror), or as images formed by light reflected from a smooth surface. In computer science, a reflection is when the state of a system is identical to the original state after some transformation. For example, if you flip a digital switch that controls an electric light bulb, then the light will go out because the system state has been transformed; it is now "off" instead of "on". However, if you record the state of the system (whether the switch is closed or open) then the state has been preserved and this is called a reflection.
Expert Verified X has two lines of symmetry, whereas the other has one. At least one line of symmetry has the following letters: A, B, C, D, E, H, I, M, O, T, U, V, W, X, Y. (you can choose one).
Letters such as B and D have a horizontal line of symmetry, which means that their top and bottom sections match. Some letters, such as X, H, and O, have both vertical and horizontal symmetry lines. Some, like P, R, and N, have no symmetry lines. Symmetry is an important factor in determining how many different shapes a letter can take.
Symmetrical letters look the same from every angle, which allows you to write them even when viewing the page from a slight angle. This is useful for books and magazines, where turning the page would be difficult if the image was upside down.
Asymmetrical letters do not look the same from all angles. They are more flexible than symmetrical letters and can be written even when viewed from a slight angle. This is useful for advertisements and other printed material where being able to write even when standing back would make reading it easier.
It is also important to note that asymmetrical letters are not the same shape on both sides of the paper or screen. They will usually have one part that is wider than the other, which gives the letter its unique appearance.
Symmetrical letters come in two varieties: upright and inverted. Upright symmetrical letters look the same whether they are face up or face down. Inverted symmetrical letters look the same when turned over right-side up or upside down.
The (capital) letters A, B, C, D, E, H, I, K, L, M, O, T, U, V, W, X, and Y all have at least one plane of reflection symmetry (depending on how you design it). This means that there is at least one direction in which these letters look the same if they are reflected across a vertical or a horizontal line.
For example, the letter D has a reflection plane along its diagonals. If we reflect a piece of paper with some printed letters on it across this diagonal, then all the letters will still be able to be read even though some of them have been mirrored over.
This shows that the letter D has reflection symmetry along its diagonals. Some letters, such as the G, N, and Z, don't have any reflection planes so they can't have reflection symmetry.
Here are other examples:
The number 2 has reflection symmetry about its center. If you draw a line through the middle of a square cut out from a sheet of paper, then you will find that it passes through exactly two corners. These are called "reflection points".
The letter D has reflection symmetry about its axis. If you look at a capital D from above, you will see that it is symmetrical from right to left.