To convert mm (millimeters) to cm (centimeters), you need to understand the relationship between these two units of length. Millimeters are smaller units of length than centimeters, with 1 mm being equal to 0.1 cm. This means that to convert mm to cm, you will need to divide the given value of mm by 10.
So, if you want to convert 20 mm to cm, you would follow these steps:
Step 1: Write down the given value in mm.
In this case, the given value is 20 mm.
Step 2: Write down the conversion factor.
As mentioned earlier, the conversion factor for mm to cm is 1 mm = 0.1 cm.
Step 3: Set up the conversion equation.
To convert mm to cm, we will use the following equation:
20 mm ÷ 1 mm = x cm ÷ 0.1 cm
Step 4: Simplify the equation.
When we simplify the equation, we get:
20 = x ÷ 0.1
Step 5: Solve for x.
To find the value of x, we need to multiply 20 by 0.1, which is the reciprocal of 0.1. This gives us:
x = 20 ÷ 0.1 = 200 cm
Step 6: Write the final answer and include units.
The final answer is 20 mm is equal to 200 cm.
In summary, to convert mm to cm, you need to divide the given value in mm by 10. If you are converting from cm to mm, you would multiply the given value in cm by 10. Just remember, when converting between different units of length, always write down the given value, the conversion factor, and set up a conversion equation to make sure you get the correct answer.