To convert 40 cm to inches, we must first understand the relationship between the two units of length. 1 centimeter (cm) is equal to 0.3937 inches. This means that to convert cm to inches, we must multiply the cm value by 0.3937.
Step 1: Write down the given value
In this case, the given value is 40 cm.
Step 2: Set up the conversion equation
To convert from cm to inches, we will use the conversion equation: inches = centimeters x 0.3937.
Step 3: Plug in the given value
Replace the value of 40 cm in the equation.
inches = 40 cm x 0.3937
Step 4: Simplify
Multiply 40 with 0.3937 to get the value in inches.
inches = 15.748 inches
Step 5: Round off the answer
Since inches is a unit of measurement with decimals, we can round off the answer to the nearest hundredth.
inches = 15.75 inches
Step 6: Write the final answer
Therefore, 40 cm is equal to 15.75 inches.
In summary, to convert cm to inches, use the formula inches = centimeters x 0.3937 and simply plug in the given value to solve for the converted unit. Remember to round off the answer to the appropriate decimal place. With these steps, you can easily convert any given value in centimeters to inches.