Final answer:
The average thickness of Saturn's rings is approximately 20 meters, significantly thin compared to their broad horizontal expanse.
Step-by-step explanation:
The average thickness of Saturn's rings is not in the thousands or millions of kilometers, nor is it in the hundreds. In fact, Saturn's rings are very thin compared to their broad expanse. The average thickness of Saturn's main rings is only about 20 meters. While the rings extend far from the planet (with the A, B, and C rings covering a range from 75,000 to 137,000 km from Saturn's center), they are remarkably slender. An interesting comparison is that if one were to create a scale model of the rings with paper, they would be 1 kilometer across, while Saturn would stand tall like an 80-story building.