To convert 40 inches to cm, we will use the conversion factor of 1 inch being equal to 2.54 cm. This means that for every 1 inch, there are 2.54 cm.
Step 1: Write down the given value – In this case, it is 40 inches.
Step 2: Set up the conversion equation – We will use the formula, inches x conversion factor = cm. So, it will look like 40 inches x 2.54 cm = ? cm.
Step 3: Cancel out the unit being converted – Since inches are the only unit being converted, we can cancel it out from the equation. This leaves us with 40 x 2.54 = ? cm.
Step 4: Solve for the unknown value – Multiply 40 by 2.54 to get the value in cm. This will give us 101.6 cm.
Step 5: Write out the answer – The final step is to write the answer with the correct unit. Therefore, 40 inches is equal to 101.6 cm.
In conclusion, to convert inches to cm, we can use the conversion factor of 1 inch = 2.54 cm and follow the steps of setting up the conversion equation, cancelling out the unit being converted, solving for the unknown value, and finally writing out the answer with the correct unit.