Find the measure of angle R.

Angle R is part of a triangle with angle S = 48 degrees. Angle R is not directly given, but it is part of a larger structure. Based on the diagram, angle R is not a right angle. The angle adjacent to R, within the triangle formed by R, S, and the vertex above them, is not given. However, the angle formed by the line segment RP and the horizontal line is not directly labeled. The angle labeled 48 degrees is at S. Without more information or context, the exact measure of angle R cannot be determined from the provided labels alone. However, if we consider the line segment RP and the horizontal line passing through P, the angle formed at P is 69 degrees. The line segment PR is a transversal. If we assume that the horizontal line through P is parallel to the horizontal line through R and S, then alternate interior angles would be equal. However, this is not explicitly stated. Given the information, we cannot definitively determine angle R.