PLEASE HELP ME. Thank you A classroom was asked what convinced them that the sum of exterior angles in any polygon is 360°. These are the three different points of view.

1. "We were convinced when we drew a bunch of different figures and used my angle ruler to measure the exterior angles. They all came out close to 360°."
2. "We were convinced when we thought about walking around the figure and realized that we made one complete turn or 360°.”
3. "We used the results about sums of interior angles and the fact that the measure of each interior angle plus its adjacent exterior angle is 180° to deduce the formula using algebra."

What are the pros and cons of each of the argument?​