code: function polarToCartesian(radius, pathRadius, angleInDegrees) {
      var /** @type {?} */ angleInRadians = (angleInDegrees - 90) * DEGREE_IN_RADIANS;
      return (radius + (pathRadius * Math.cos(angleInRadians))) +
          ',' + (radius + (pathRadius * Math.sin(angleInRadians)));
  }
docs: Converts Polar coordinates to Cartesian.
  @param {?} radius
  @param {?} pathRadius
  @param {?} angleInDegrees
  @return {?}