Va rog, cine stie? Am nevoie urgent
![Va Rog Cine Stie Am Nevoie Urgent class=](https://ro-static.z-dn.net/files/db4/a14b820a5068c41ecabb7b7513968bb4.png)
Răspuns:
90 de grade.
orice unghi care subintinde un diametru are 90 de grade.