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Acute or obtuse triangle

Triangles without a right angle

Pronunciation
/əˈkjuːt ɔː əbˈtjuːs ˈtrʌɪaŋɡəl/
/əˈkjut ɔr ɑbˈtjus ˈtraɪˌæŋɡəl/
Categories
triangle simplex