# Question #e2e23

##### 1 Answer

Sep 1, 2017

#### Explanation:

Your tool of choice here will be the **conversion factor**

#color(blue)(ul(color(black)("1 in = 2.54 cm")))#

In your case, you want to convert the number of inches to centimeters, so set up the conversion factor as

#"what you need"/"what you have" = "2.54 cm"/"1 in"#

This means that you have

#6.75 color(red)(cancel(color(black)("in"))) * "2.54 cm"/(1color(red)(cancel(color(black)("in")))) = color(darkgreen)(ul(color(black)("17.1 cm")))#

The answer is rounded to three **sig figs**, the number of sig figs you have for the number of inches.