Find the value of x for the triangle

1)x=180°−(50°+60°) x = 180 ° - ( 50 ° + 60 ° ) =180°−110°=70°2)x=180°−(30°+90°) Since it is a right angle so the third angle is a right angle. ...3)x=180°−(30°+110°) x = 180 ° - ( 30 ° + 110 ° ) =180°−140°=40°.4)Here; 50°+2x=180° Or, 2x=180°−50°=130° ...5)This is an equilateral triangle. ...6)This is a right angled triangle.i HOPE IT'S HELP

I’m not sure how this works