der Radius
Translation
radius
Examples
Der Radius des Kreises beträgt fünf Zentimeter.
The radius of the circle is five centimetres.
Wir suchen in einem Radius von zehn Kilometern.
We are searching within a radius of ten kilometres.
Grammar Patterns
the radius of ((sth.)) der Radius ((et2)) The radius of the circle is five centimetres.
within a radius of ((sth.)) in einem Radius von ((et3)) We are searching within a radius of ten kilometres.
Similar Words
Synonyms: Halbmesser; Antonyms: Durchmesser (diameter)
Etymology
Directly from Latin 'radius', meaning 'ray' or 'spoke of a wheel'.
Memory Tips
It's a cognate with the English word 'radius'. Just remember it's a masculine noun in German: 'der Radius'.