To convert 30×40 cm to inches, you can use the following steps:
1. Know the conversion factor: 1 inch is equal to 2.54 cm.
2. Multiply the given value in centimeters by the conversion factor to get the equivalent value in inches.
3. So, to convert 30 cm to inches:
30 cm x (1 inch / 2.54 cm) = 11.81 inches
4. Similarly, to convert 40 cm to inches:
40 cm x (1 inch / 2.54 cm) = 15.75 inches
5. Therefore, 30×40 cm is equal to 11.81×15.75 inches.
Real-life example:
Let’s say you have a rectangular table that measures 30 cm in length and 40 cm in width. To convert these measurements to inches, you would follow the steps above. The table would then be 11.81 inches in length and 15.75 inches in width.
FAQs:
1. Why do we need to convert units?
Converting units allows us to easily compare measurements and work with different systems of measurement.
2. Can I use a calculator to convert units?
Yes, using a calculator can make the conversion process quicker and more accurate.
3. Is there a shortcut to convert units?
Knowing common conversion factors and practicing the conversion process can help you quickly convert units without needing a calculator.