Üçgende Açılar ve İkizkenar Üçgen

45) Find $x$ in the right triangle where the internal segment is equal to the base segment, and the exterior angle to the small triangle is $80^\circ$.

46) $ABC$ bir üçgen, $[AB] \perp [AC]$, $|BD| = |DC|$, $|AE| = |AD|$, $m(\widehat{ACB}) = 50^\circ$, $m(\widehat{ADE}) = x$. Yukarıdaki verilere göre, $x$ kaç derecedir?

This question includes visual content: Two separate geometry problems. Problem 45: A right-angled triangle. A line segment is drawn from the right angle vertex to the base. This segment has a double-tick mark, as does a segment on the base. The angle between the inner segment and the base on the left is $80^\circ$. The angle at the bottom-right corner of the main triangle is labeled $x$. Problem 46: A large triangle ABC with a right angle at vertex A. Point D lies on segment BC, and point E lies on segment AC. Segment AD is drawn. Segment DE is drawn. Marking indicators: $BD = DC$ (each has a single tick mark), and $AE = AD$ (each has a double tick mark). The angle at vertex C is $50^\circ$. The angle $\angle ADE$ is labeled $x$.