

Ein Dreieck hat immer drei Ecken und drei Seiten.
[ˈaɪ̯n ˈdraɪ̯ʔɛk ˈhat ˈɪmɐ ˈdraɪ̯ ˈɛkn̩ ˈʊnt ˈdraɪ̯ ˈzaɪ̯tn̩.]
A triangle always has three corners and three sides.
Kannst du mir zeigen, wie man Dreiecke zeichnet?
[ˈkanst ˈduː ˈmiːɐ̯ ˈtsaɪ̯ɡn̩, ˈviː ˈman ˈdraɪ̯ʔɛkə ˈtsaɪ̯çnət?]
Can you show me how to draw triangles?
Die Fläche des Dreiecks musst du selbst berechnen.
[ˈdiː ˈflɛçə dɛs ˈdraɪ̯ʔɛks ˈmʊst ˈduː ˈzɛlpst bəˈrɛçnən.]
You have to calculate the area of the triangle yourself.
"das Dreieck" is in the lesson "Science" (Level 39), along with 11 other useful words. LinDuo has 180 topic lessons like this one, 2,375 words in total. Every word has an illustration, a transcription and pronunciation in a female and a male voice. Just 10–15 minutes a day is enough to learn them all. Free, and works offline.