what instrument is used to measure lenght answer is ten letters

A meter stick can measure length.

To determine the instrument used to measure length with the answer of ten letters, we can start by thinking of various instruments commonly used for measuring length.

Some examples include a ruler, tape measure, caliper, micrometer, and yardstick. Let's see which one meets the criteria of having ten letters.

- Ruler: 5 letters
- Tape measure: 11 letters
- Caliper: 7 letters
- Micrometer: 10 letters
- Yardstick: 9 letters

Out of these options, only the word "Micrometer" has ten letters. Therefore, the instrument used to measure length that fits the criteria is a micrometer.