Question 16
Let $ABC$ be a triangle in which $m(\hat{A}) = 135^\circ$. The perpendicular to the line $AB$ erected at $A$ intersects the side $[BC]$ at $D$, and the angle bisector of $\angle B$ intersects the side $[AC]$ at $E$. Find the measure of $\widehat{BED}$.
Traian Preda
Traian Preda