
Proprietățile triunghiului isoscel
Presentation
•
Mathematics
•
6th Grade
•
Hard
Matei Maria
Used 1+ times
FREE Resource
7 Slides • 0 Questions
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Triunghiul isoscel este triunghiul care are două laturi congruente, cea de-a treia se numește bază. Unghiurile alăturate bazei se numesc unghiurile de la bază, iar cel opus bazei se numește unghiul de la vârf.
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[BC] - bază
∢B și ∢C - unghiurile de la bază
∢A - unghiul de la vârf
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Unghiurile alăturate bazei într-un triunghi isoscel sunt congruente.
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Dacă două unghiuri ale unui triunghi sunt congruente, atunci triunghiul este isoscel.
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