Step 1: Understand the basic conversion factor
Before converting units, it is important to understand the basic conversion factor between centimeters (cm) and inches (in). The conversion factor is 1 cm = 0.393701 inches. This means that for every 1 centimeter, there are 0.393701 inches.
Step 2: Write down the given value
In this case, the given value is 20 cm.
Step 3: Set up the conversion equation
To convert cm to inches, we will use the conversion factor. The equation is: inches = centimeters x 0.393701.
Step 4: Substitute the given value into the equation
Now, plug in the given value of 20 cm into the equation. inches = 20 cm x 0.393701.
Step 5: Solve the equation
Using a calculator or by hand, multiply 20 by 0.393701. This will give us the value of 7.87402 inches.
Step 6: Round off the answer
In most cases, the converted value should be rounded off to the nearest hundredth place. In this case, the hundredth place is 7, so we can round off the answer to 7.87 inches.
Step 7: Write the final answer
The final answer is 20 cm is equal to 7.87 inches.
Therefore, 20 cm is equivalent to 7.87 inches. You can now use this conversion to help others convert their length values from centimeters to inches accurately.