Question

am mare nevoie ..ajutati ma va rog ex 1

Answer 1

Ex:1 b)$m(\ \textless \ DBF)= \frac{m(\ \textless \ CBA)}{2}+ \frac{m(\ \textless \ EBG)}{2} \\ m(\ \textless \ DBF)= \frac{90^{0} }{2}+ \frac{90^{0} }{2}=2( \frac{90^{0} }{2}) \\ m(\ \textless \ DBF)=2( \frac{90^{0} }{2})=2*45^0=90^0$