How to Say “Equilateral Triangle” in French

triangle équilatéral
masculine
The English phrase "equilateral triangle" is translated into French as triangle équilatéral.
Meaning: type of triangle (noun)

How does it change in a sentence?

The noun triangle is masculine, which means it is used with the masculine indefinite article un or the masculine definite article le. When forming the plural, triangle équilatéral becomes triangles équilatéraux, as the adjective takes the masculine plural ending -aux.

Did you know?

  • The word triangle is used in French to describe a musical instrument, a small metal rod bent into a shape that is rarely a perfect triangle équilatéral.
  • The adjective équilatéral is a 'learned borrowing', meaning it was consciously imported from Latin aequilaterālis rather than evolving naturally through spoken Vulgar Latin.
  • In French, triangle is used metaphorically in the phrase triangle amoureux to describe a love triangle, mirroring the English idiom exactly.

Examples in context

  • C'est un triangle équilatéral.
    This is an equilateral triangle.
    Tatoeba #6385303 by Aiji, translation #3819096 by CK
  • Je dessine un triangle équilatéral sur la feuille de papier.
    I am drawing an equilateral triangle on the sheet of paper.
  • Regarde ce dessin, c'est un triangle avec trois côtés égaux.
    Look at this drawing, it's a triangle with three equal sides.
  • Dessine un triangle équilatéral sur le papier.
    Draw an equilateral triangle on the paper.
  • Ce triangle équilatéral a trois côtés égaux.
    This equilateral triangle has three equal sides.

Example conversation

Hugo and Manon are studying geometry together.

  1. Hugo

    Peux-tu tracer un triangle équilatéral, Manon ?
    Can you draw an equilateral triangle, Manon?
  2. Manon

    Oui, je peux le faire pour toi, Hugo.
    Yes, I can do it for you, Hugo.
  3. Hugo

    Merci, c'est pour mon cours de mathématiques.
    Thanks, it is for my math class.
  4. Manon

    Le voilà, c'est un triangle équilatéral parfait.
    There it is, it's a perfect equilateral triangle.

Sources

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Kristin Tania
Kristin TaniaHelp make this guide better. Spot a mistake, know another way to say it, or have an example from real life? Share it below.
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