Why is it better to use a divider than a ruler, while measuring the length of a line segment?

Explanation

**Step-by-Step Solution:**

1. **Understanding the Tools**: First, we need to understand the two tools we are comparing: a ruler and a divider. A ruler is a straight edge with measurement markings, while a divider consists of two pointed ends that can be adjusted to measure distances.

2. **Positioning Error with Rulers**: When using a ruler, one common issue is positioning error. This means that if the ruler is not placed correctly at the starting point of the line segment, the measurement can be inaccurate. For example, if the ruler is slightly shifted, the reading will not reflect the true length of the line segment.

3. **Accuracy of Dividers**: On the other hand, a divider can provide a more accurate measurement. When you use a divider, you can place one point at the starting point of the line segment and the other point at the endpoint. This method eliminates the possibility of positioning errors because the divider's points directly mark the length without needing to align with measurement markings.

...