To convert 19cm to inches, we first need to understand the conversion factor between these two units of length. One inch is equivalent to 2.54 centimeters, which means that 1 inch is 2.54 times larger than 1 centimeter. With this in mind, we can start the conversion process.

Step 1: Write down the given measurement

Start by writing down the given measurement, which is 19cm.

Step 2: Set up the conversion equation

To convert from centimeters to inches, we can use the following conversion equation: inches = centimeters ÷ 2.54. This equation accounts for the conversion factor we mentioned earlier.

Step 3: Substitute the measurement into the equation

Substitute 19cm into the equation we just set up. This gives us:

inches = 19cm ÷ 2.54

Step 4: Use a calculator to perform the calculation

To get the final conversion, we need to divide 19 by 2.54. This gives us 7.48 inches. However, it is important to keep track of the number of significant figures. Since the given measurement has two significant figures, we should keep our final answer to two significant figures as well. Therefore, the final conversion is 7.5 inches.

Step 5: Write the final answer

To complete the conversion, we can now write our final answer:

19cm = 7.5 inches

Alternatively, we can also express the answer as 19 centimeters = 7.5 inches.

Congratulations, you have successfully converted 19cm to inches!