Answer:
I can't give you an accurate answer without a depiction of angle SOR, unfortunately
Explanation:
An Acute angle would be fairly small, anything smaller than 90 degrees to be exact. An obtuse angle would be anything bigger than 90 degrees. A right angle would be a corner angle, 90 degrees exactly. A straight angle is exactly what it entails, an angle measuring exactly 180 degrees, looking like a straight line.