der Halbkreis
semicircle
A flat geometric figure consisting of half a circle and its corresponding diameter.
EXAMPLE
Der Halbkreis hat einen Durchmesser von sechs Zentimetern.
The semicircle has a diameter of six centimeters.
der Halbkreis
semicircle
der Halbkreis, die Halbkreise
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Meanings
der Halbkreis
semicircle
A semicircular arrangement of people or objects.
EXAMPLE
Die Kinder setzten sich im Halbkreis vor die Tafel.
The children sat in a semicircle in front of the board.
Forms
Forms adapted from the German Wiktionary entry Halbkreis, by Wiktionary contributors, licence CC BY-SA 4.0.
At a glance
| gender | masculine der |
|---|---|
| plural | die Halbkreise |
| genitive | des Halbkreises |
The four cases
| singular | plural | |
|---|---|---|
| nominative | der Halbkreis | die Halbkreise |
| accusative | den Halbkreis | die Halbkreise |
| dative | dem Halbkreis | den Halbkreisen |
| genitive | des Halbkreises | der Halbkreise |
The article changes with the case; it is shown in colour.
Usage tips
Word composition
'Halbkreis' (semicircle) is made up of 'halb' (half) and 'Kreis' (circle). The word therefore makes it clear that only half of a circle is meant.
EXAMPLE
Die Lehrerin zeichnete einen Halbkreis an die Tafel.
The teacher drew a semicircle on the board.
Geometric terms
In geometry, 'Halbkreis' (semicircle) is often described together with 'Durchmesser' (diameter), 'Radius' (radius), or 'Kreislinie' (circumference). The diameter forms the straight side of the semicircle.
EXAMPLE
Für den Halbkreis müssen die Schülerinnen zuerst den Radius berechnen.
For the semicircle, the students first have to calculate the radius.
Typical collocations
When referring to an arrangement of people or objects, 'Halbkreis' (semicircle) often appears with verbs such as 'sitzen' (to sit), 'stehen' (to stand), or 'sich aufstellen' (to line up). The preposition 'in' is usually used with the dative: 'im Halbkreis' (in a semicircle).
EXAMPLE
Die Musiker standen im Halbkreis und warteten auf ihren Dirigenten.
The musicians stood in a semicircle and waited for their conductor.
In real life
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