From the Latin irregularis , irregular is an adjective that allows to name what is out of the rule or is contrary to it. The term, therefore, is the opposite of regular, which is that which is adjusted and in accordance with the rule, uniform or that does not undergo great variations.
For example: "The tender was irregular since it was not subject to the usual controls by the regulatory bodies" , "The electrical connection of the factory is irregular: it does not comply with the parameters required by law" , "We need to normalize this irregular activity to avoid accidents and other problems ” , “ The government must prosecute anyone who offers irregular employment and who violates the rights of workers ” .
Irregular is also that or that which does not always perform in the same way or that does not present the same behavior. The concept also makes it possible to point out what does not happen ordinarily: "My work is irregular, I have good months and bad months" , "The team showed an irregular performance throughout the tournament, with ups and downs" , "I assure you that this is irregular, we do not usually have these inconveniences " , " If it were not so irregular, this tennis player would be part of the Top Ten " , " I cannot understand what happened: this event was somewhat irregular " .
For geometry, an irregular polygon (or polyhedron) is one that is not regular, that is, its sides (or faces) and angles are not equal to each other. A proof of this is that all its vertices cannot be part of the same circumference, as is the case, for example, with a square. One of the advantages of irregular polygons with respect to regular polygons is that their construction does not require the use of a compass, but rather a rule or guide is enough to join their vertices.
Calculating the perimeter of an irregular polygon is very simple: you simply have to add the length of each of its sides. Regarding its area, it is necessary to resort to the technique known as triangulation , which consists of dividing a polygon into as many triangles as possible (it should be mentioned that quadrilaterals are also accepted); Once these figures have been obtained, we simply proceed to find out their areas and, finally, they are added to find the area of the irregular polygon of which they are part.
The grammar finally argues that all that is irregular in a language, departs from the type that is considered normal. For example, irregular verbs are those that are not governed by the conjugation model of love, fear and leave when conjugating. In other words, the root of an irregular verb undergoes modifications in its root when conjugated, unlike what happens with the three mentioned above.
This can clearly notice if you take as an example the verb fit and it combines the time present of the indicative, because in quepo , for example, no trace of the root ca . Other verbs that belong to this group are feel, arrive, know, conquer and understand; note that the variations are not always as evident as in the case of fit. On the other hand, there are the defectives, an interesting subgroup of verbs that cannot be conjugated in all persons or tenses; such is the case of raining .