20 centimeters

To convert 20 centimeters to another unit, such as inches or meters, you can use the following conversion factors:

1 inch = 2.54 centimeters
1 meter = 100 centimeters

To convert 20 centimeters to inches:
20 centimeters x (1 inch / 2.54 centimeters) = 7.87 inches

To convert 20 centimeters to meters:
20 centimeters x (1 meter / 100 centimeters) = 0.2 meters

Real-life example:
Let’s say you have a piece of fabric that is 20 centimeters long and you want to know how long it is in inches. By using the conversion factor of 1 inch = 2.54 centimeters, you can calculate that the fabric is 7.87 inches long.

FAQs:
1. Why do we need to convert units?
Converting units allows us to easily compare measurements and work with different systems of measurement. It also helps in solving mathematical problems and making accurate calculations.

2. Can I convert units without using conversion factors?
While it is possible to convert units without using conversion factors, it is much easier and more accurate to do so with the help of conversion factors. Conversion factors provide a direct relationship between different units of measurement.

3. Is there a simple way to remember conversion factors?
One way to remember conversion factors is to create a mnemonic device or use a conversion chart for quick reference. Practice and repetition can also help in memorizing common conversion factors.