Question 1118023
Sum of angle measures if angle at POINT R is x,
{{{60+130+x+3x+3x}}}.


Pentagon will have sum of measures of interior angles  {{{3*180=540}}}.


{{{x+3x+3x+60+130=540}}}
.
.
{{{7x=350}}}

{{{x=50}}}--------at point R.


S and T each are 150 degrees.