Answer:
46 mm.
Step-by-step explanation:
Hello there!
In this case, according to the equivalence statements to convert from inches to centimeters, centimeters to meters and meters to millimeters, we can write:
2.54 cm = 1 in
100 cm = 1 m
1000 mm = 1 m
It is possible to set up the following conversion factor to obtain the required millimeters:
![1.8in*(2.54cm)/(1in)*(1m)/(100cm) *(1000mm)/(1m) \\\\=46mm](https://img.qammunity.org/2022/formulas/chemistry/college/dwst3q1zpv4j53ukyzm3yl2pjehqzqawnz.png)
Best regards!