Radii: meaning, definitions and examples
๐ต
radii
[ หreษช.di.aษช ]
geometry, plural
Radii is the plural form of radius, which refers to the distance from the center of a circle to any point on its circumference. In three-dimensional space, it can also refer to the distance from the center of a sphere to its surface. The term is commonly used in mathematics, physics, and engineering.
Synonyms
Examples of usage
- The circle has a radius of 5 cm, so its radii are also 5 cm.
- In engineering, understanding the radii of curves is crucial for design.
- The radii of the two circles differ significantly.
- To calculate the area, you need to know the radius, but the concept of radii can also be applied.
- Various shapes can be analyzed using radii for their dimensions.
Translations
Translations of the word "radii" in other languages:
๐ต๐น raios
๐ฎ๐ณ เคคเฅเคฐเคฟเคเฅเคฏเคพ
๐ฉ๐ช Radien
๐ฎ๐ฉ jari-jari
๐บ๐ฆ ัะฐะดัััะธ
๐ต๐ฑ promienie
๐ฏ๐ต ๅๅพ
๐ซ๐ท rayons
๐ช๐ธ radio
๐น๐ท yarฤฑ รงaplar
๐ฐ๐ท ๋ฐ์ง๋ฆ
๐ธ๐ฆ ุฃุดุนุฉ
๐จ๐ฟ polomฤry
๐ธ๐ฐ polomery
๐จ๐ณ ๅๅพ
๐ธ๐ฎ polmeri
๐ฎ๐ธ radรญus
๐ฐ๐ฟ ัะฐะดะธัััะฐั
๐ฌ๐ช แ แแแแฃแกแแแ
๐ฆ๐ฟ radiuslar
๐ฒ๐ฝ radios
Word origin
The word 'radius' originates from the Latin word 'radius', meaning 'ray' or 'spoke of a wheel'. It was adopted into English in the early 19th century, primarily in mathematical contexts. The plural form 'radii' follows the classical Latin pluralization rules, where 'radius' ends in '-us' and changes to '-i' in its plural form. As geometry and the study of circles became more prominent during the development of mathematics, the term 'radius' and its plural 'radii' became essential for describing the properties of circles and spheres. The use of 'radii' is particularly prevalent in fields such as engineering, physics, and astronomy, where precise measurements are critical.