To convert 170cm to inches, we must first understand the conversion factor between these two units. 1 cm is equal to 0.3937 inches. We can use this information to create a conversion equation:

170cm x (0.3937 inches / 1cm) = 66.929 inches

Therefore, 170cm is equal to 66.929 inches.

Step 1: Write down the given value and the conversion factor

Given value: 170cm

Conversion factor: 1 cm = 0.3937 inches

Step 2: Set up the conversion equation

170cm x (0.3937 inches / 1cm) = ?

Step 3: Cancel out the units

In the conversion factor, we see that cm is in both the numerator and denominator. This means they will cancel out, leaving us with only inches.

170 x (0.3937 inches / 1) = ?

Step 4: Simplify the equation

To simplify, we multiply 170 by 0.3937.

170 x 0.3937 = 66.929

Step 5: Write the final answer

The final answer is 66.929 inches. Therefore, 170cm is equal to 66.929 inches.

You can use the same method to convert any value in centimeters to inches. Simply multiply the given value by 0.3937 to get the equivalent value in inches.