Upon analyzing the uploaded image, I now see that the question involves a triangle $QPR$ and angles related to vectors or directions. It appears the triangle $QPR$ is an equilateral triangle, and the problem has a couple of parts that deal with angle calculations and possibly vector relationships.

Here’s the structure of what I can read:

Question breakdown:

• Part (a): It asks to find the angle $\angle OPQ$ based on the fact that the triangle $QPR$ is equilateral and other given information.

• Part (b): It seems to discuss vector properties or another geometric relationship where you have to use the previously computed information.

Solution outline for Part (a):

Since $QPR$ is an equilateral triangle:

1. All angles in $\Delta QPR$ are 60°, meaning $\angle QPR = \angle PQR = \angle PRQ = 60^\circ$.