To convert 40 cm to in, you will need to use the conversion factor of 1 cm = 0.393701 in. This means that for every 1 centimeter, there are 0.393701 inches.
Now, let’s break down the steps to convert 40 cm to in:
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 in, we will use the formula: inches = centimeters x 0.393701
Step 3: Plug in the given value into the equation
Replace “centimeters” with 40 in the equation. It should now look like this: inches = 40 x 0.393701
Step 4: Simplify the equation
Multiply 40 by 0.393701 to get the answer in inches. This gives us: inches = 15.74804
Step 5: Round the answer to the appropriate number of significant figures
Since the given value had two significant figures (40 cm), the final answer should also have two significant figures. Therefore, the final answer is 15.75 in.
Step 6: Write the final answer with the correct unit
The final answer is 15.75 in.
In summary, to convert 40 cm to in, you need to multiply the given value by the conversion factor of 0.393701 and round the answer to the appropriate number of significant figures. Following these steps, you can easily convert any unit of length from cm to in.