The diameter of a lead pipe is measured to be 2.40 cm and you are asked to convert to units of inches. Which of the following conversion factors can you use to solve this problem?

12 in = 1 ft

100 cm = 1 m

3 ft = 1 yd

Two of the these

?>None of these

1 in = 2.54 cm

1 cm = 1 in / 2.54

d ( in ) = 2.4 / 2.54

None of these

To convert the diameter of a lead pipe from centimeters to inches, you should use the conversion factor:

2.54 cm = 1 inch

This conversion factor can be obtained from the fact that there are 2.54 centimeters in one inch.

So, if the diameter of the lead pipe is measured to be 2.40 cm, you can convert it to inches by using the following calculation:

2.40 cm * (1 inch / 2.54 cm) = 0.945 inches

Therefore, the correct answer is: None of these conversion factors.