Both vertex angles will be same as its an isosceles triangle
Let each be x
According to angle sum property
[tex]\\ \sf \longmapsto x+x+50=180[/tex]
[tex]\\ \sf \longmapsto 2x+50=180[/tex]
[tex]\\ \sf \longmapsto 2x=180-50[/tex]
[tex]\\ \sf \longmapsto 2x=130[/tex]
[tex]\\ \sf \longmapsto x=\dfrac{130}{2}[/tex]
[tex]\\ \sf \longmapsto x=60°[/tex]
