Answer:
239 degrees.
Arc is circumference so length = r * 4.17133691221
Step-by-step explanation:
We eliminate RSQ in degrees = 90 + 31 = 121
So that;
RPQ = 360 -121 = 239 degrees
2pi radius (239/360) = r6.28318530718 (0.66388888888)
= r * 4.17133691221
