Android, help rotating image on touch

Question

I am trying to rotate one of the transparent PNGs on this image. The number part is what I want to rotate. I am able to do this, but it is not what I am trying to achieve

Answer 1

By accepting @Dipak Keshariya's answer i am putting way to to get the angle rotation which can help you identify selected part of wheel.

private float copy[] = new float[9];
    matrix.getValues(copy);
float wheelAngle = Math.round(Math.atan2(copy[Matrix.MSKEW_X],
                copy[Matrix.MSCALE_X]) * (180 / Math.PI));