To convert 20cm to inches, you can use the following steps:
1. Know the conversion factor: 1 inch is equal to 2.54 centimeters.
2. Set up the conversion equation: 20 cm x (1 inch / 2.54 cm)
3. Solve the equation: 20 / 2.54 = 7.87 inches
Therefore, 20cm is equal to 7.87 inches.
Real-life example:
Let’s say you have a ruler that measures in centimeters, and you want to know how many inches a 20cm length is. By using the conversion factor of 1 inch = 2.54 cm, you can easily convert 20cm to inches. So, a 20cm length on the ruler would be approximately 7.87 inches long.
FAQs:
1. Why do we need to convert units?
Converting units allows us to easily compare measurements in different systems and use them in various calculations.
2. Can I convert units without knowing the conversion factor?
It is recommended to know the conversion factor to accurately convert units, but there are also online converters available for quick conversions.
3. Is there a shortcut to convert units?
Understanding the relationship between the two units and using the conversion factor is the most reliable way to convert units accurately.