Please help with the question below

Alex drew a circle with right triangle prq inscribed in it, as shown below: the figure shows a circle with points p, q, and r on it forming an inscribed triangle. side pq is a chord through the center and angle r is a right angle. arc qr measures 80 degrees.

If jaime wants to find 60% of 320, which table should he use?

Need so much on this one how many yards?