In figura alaturata m(<ABC)=40 de grade . atunci m (<DBC) =...
![In Figura Alaturata MltABC40 De Grade Atunci M LtDBC class=](https://ro-static.z-dn.net/files/d1c/cba1d0450f804c4cf6b13dc3f3519970.jpg)
Răspuns:
<DBC= 90
Unghiul ABD e drept, deci are 90 de grade. Astfel, unghiul DBC are 90-40=50 de grade.