Answer :

Sure! To convert a measurement from millimeters (mm) to centimeters (cm), you need to know the basic conversion factor between these two units of length.

1 centimeter (cm) is equal to 10 millimeters (mm). Therefore, to convert millimeters to centimeters, you divide the number of millimeters by 10.

Given:
- 521.85 millimeters (mm)

Step-by-step solution:

1. Identify the conversion factor:
- There are 10 millimeters in 1 centimeter.

2. Perform the conversion:
- Divide the number of millimeters by 10.
[tex]\[ 521.85 \, \text{mm} \div 10 = 52.185 \, \text{cm} \][/tex]

Therefore, 521.85 millimeters is equal to 52.185 centimeters.
Answer: 52.185 centimeters