Exterior Angle Property of Triangle

One of the exterior angle of a triangle is $80°$ and the interior opposite angles are in the ratio $5:3$. Find the angles of the triangle.  

In a triangle an exterior angle at a vertex is $95°$ and its one of the interior opposite angles is $55°$. Find all the angles of the triangle. 

In the figure below find $z$.   

In the figure below find $y$.  

In the figure below find $x$. 

In the figure below find $\angle AED$  

In the figure below find $\angle ACD$ 

In the figure below find $\angle ABD$. Also, find $\angle ABC$, if $\angle C=3\angle ABC$  

In the figure below two of the angles are indicated. What are the measures of $\angle ACX$ and $\angle ACB$? 

In the following figure the measure of some of the angles are indicated the values of $x$ and $y$ are respectively

In the following figure the values of $x$ and $y$ are respectively 

In the following figure, $∆ABC$ is equilateral. Find the measure of all the exterior angles i.e. $\angle FAB, \angle DBC$ and $\angle ACE$. Are they all same?

Sides $BC, CA$ and $BA$ of a triangle $ABC$ are produced to $D, Q, P$, respectively as shown in the figure. If $\angle ACD=100°$ and $\angle QAP=35°$, find all the angles of the triangle $ABC$.

In the following figure, the sides $BC, CA$ and $AB$ of $∆ABC$ are produced in the order forming exterior angles $\angle ACD, \angle BAE$ and $\angle CBF$. Show that $\angle ACD +\angle BAE+\angle CBF=360°$.

The sides $AB$ and $AC$ of $∆ABC$ are produced to $P$ and $Q$ respectively. The bisectors of exterior angles at $B$ and $C$ of $∆ABC$ meet at $O$.

Prove that $\angle BOC=90°-\frac{1}{2}\angle A$.

In the given figure, $ABC$ is a triangle. If $\angle 1, \angle 2$ and $\angle 3$ are the exterior angles, then $\angle 1+\angle 2+\angle 3=$?

In the given figure, if $\angle CDE=\angle DEC$, then $\angle AED=$?

In the given figure, if $\angle ACD=\frac{5}{6}$ of a straight angle, the value of $x$ is