4) AC = 10, BO = 20, <OBC = 7. Find <OPC.

The image shows a rhombus ABCD with diagonals AC and BD intersecting at O. The diagonals of a rhombus bisect each other at right angles.
Given AC = 10, so AO = OC = 5. Given BO = 20.
In right triangle BOC, tan(Assuming the diagram is a rhombus and the given values are correct, there might be an inconsistency or missing information to find