sup textview not displaying properly if i increase font size

Question

Hi I am displaying superscript text view in android private TextView triangle;

triangle=((TextView)findViewById(R.id.triangle));

  triangle.setText(Html.fromHtml("triAngle<sup>TM</sup>Quarterly Backtest")); 
    triangle.setTextColor(getResources().getColor(R.color.red));
 triangle.setTypeface(myTypeface);

T is not displaying properly if i increase the font size