To convert 30 cm to a different unit, we need to understand the relationship between centimeters and the unit we want to convert to. In this case, let’s convert 30 cm to inches.
1. Start by knowing the conversion factor between centimeters and inches. 1 inch is equal to 2.54 centimeters.
2. Set up a proportion to solve for the unknown value in inches:
30 cm = x inches
3. Cross multiply to solve for x:
30 cm * 1 inch = x inches * 2.54 cm
30 inches = 2.54x
x = 30 / 2.54
x ≈ 11.81 inches
Therefore, 30 cm is approximately equal to 11.81 inches.
Real-life example:
If you have a ruler that measures in centimeters and you want to know how many inches a 30 cm object is, you can use the conversion factor to find out that it is approximately 11.81 inches long.
FAQs:
1. How do I convert centimeters to meters?
To convert centimeters to meters, divide the number of centimeters by 100. For example, 150 cm is equal to 1.5 meters (150 cm / 100 = 1.5 m).
2. Can I convert inches to centimeters using the same conversion factor?
Yes, you can convert inches to centimeters using the conversion factor of 1 inch = 2.54 cm. Simply multiply the number of inches by 2.54 to get the equivalent length in centimeters.
3. Is there a shortcut to convert centimeters to inches?
One shortcut is to remember that 1 inch is approximately equal to 2.54 cm. So, you can divide the number of centimeters by 2.54 to get the equivalent length in inches.