Question

The length of a cell phone is 8 centimeters to the

Answer 1

Answer:

81 mm is more  precise

Step-by-step explanation:

millimeters are smaller than cm

8 cm * 10 mm/1 cm = 80 mm

compared to 81 mm

81 mm is more  precise

Answer 2

Answer:

81 mm

Step-by-step explanation:

mm's are smaller measurements than cm's, and as a result are more precise

1 cm = 10 mm

So 8 cm = 10 * 8 (mm)

              = 80 mm

& 80 mm is smaller than 81 mm, so 81 mm is more precise

Hope this helps, and please mark me brainliest if it does!