To convert 51 cm to inches, you can use the following steps:
1. Know the conversion factor: 1 inch is equal to 2.54 cm.
2. Set up a proportion:
1 inch / 2.54 cm = x inches / 51 cm
3. Cross multiply and solve for x:
2.54x = 51
x = 51 / 2.54
x ≈ 20.08 inches
Therefore, 51 cm is approximately equal to 20.08 inches.
Real-life example:
If you have a ruler that measures in centimeters and you want to know how many inches a 51 cm long object is, you can use the conversion factor to find out that it is approximately 20.08 inches long.
FAQs:
1. Why do we need to convert units?
Converting units allows us to easily compare and work with measurements in different systems. It helps in making calculations and understanding measurements in a more familiar unit.
2. Can I convert units without knowing the conversion factor?
It is possible to convert units without knowing the exact conversion factor, but it is always helpful to have the conversion factor to ensure accuracy in the conversion.
3. Is there a shortcut to convert units?
While there are some shortcuts and tricks for converting units, it is always recommended to use the conversion factor method to ensure accuracy in the conversion process.