Explanation:

To change the unit to centimeter in a program like Paint, you need to go to the Properties dialog in the Paint menu. Here is a step-by-step explanation:

1. Open the Paint program: Start by opening the Paint program on your computer. You can find it by searching for "Paint" in the Start menu or the search bar.

2. Access the Properties dialog: Once Paint is open, look for the menu bar at the top of the window. Click on the "File" option in the menu bar, and then select "Properties" from the drop-down menu. This will open the Properties dialog box.

3. Change the unit to centimeter: In the Properties dialog box, you will see various options to customize your canvas. Look for the section that allows you to change the unit of measurement. It may be labeled as "Units" or "Measurement Units." Click on the drop-down menu next to this option and select "Centimeters" as the unit.

4. Apply the changes: After selecting centimeters as the unit of measurement, click on the "OK" button to apply the changes. The Properties dialog box will close, and your canvas will now be using centimeters as the unit.

5. Verify the unit change: To confirm that the unit has been changed to centimeter, you can check the status bar at the bottom of the Paint window. The status bar usually displays the current unit of measurement. If it shows centimeters, then the unit change was successful.

Conclusion:

In order to change the unit to centimeter in Paint, you need to access the Properties dialog in the Paint menu. This dialog allows you to customize various settings, including the unit of measurement. By selecting centimeters as the unit, you can ensure that your canvas is measured in centimeters.