Final answer:
To change the unit of measurement on a ruler, you can select a different measurement scale on the ruler, such as inches or centimeters.
Step-by-step explanation:
To change the unit of measurement on a ruler, you need to select a different measurement scale on the ruler. To change the unit of measurement on a ruler, you can select a different measurement scale on the ruler, such as inches or centimeters. Most rulers have both customary units (like inches) and metric units (like centimeters and millimeters).
For example, if the ruler is initially set to inches and you want to change it to centimeters, you need to find the ruler's centimeter scale and read the measurements from there.
Remember to match the appropriate unit with the size of the object you are measuring.