Question

Why do we need a divider to compare the lengths of line segments, when we can use the ruler for the same purpose?

• A. As ruler is not always available.
• B. Ruler may not give exact reading.
• C. Ruler does not have two ends.
• D. Insufficient data.

Answer 1

The correct option is B

Ruler may not give exact reading.

We can compare the length of line segments with the help of the ruler; however comparing the lengths with a ruler may not give exact readings. Generally, this type of error is called positioning error. To avoid these errors, it is advised to use a divider.