Answer:
RCD = 35°
Step-by-step explanation:
Analyzing the figure you can observe the following: Both triangles have two equal sides (the CD line and the sides of 11), as well as an equal angle (that of 90°).
When this happens, two equal sides + 1 equal angle it means that the triangles are similar, that is, the measures of their angles are the same.
The angle PCD and RCD are opposite to sides that measure the same (11), so the angle RCD is equal to the angle PCD: 35°
