In which case would it be most appropriate to use feet as a unit of measurement? a. length of a paper clip b. distance from chicago to san francisco c. height of a door d. width of an eyelash

A height of a door because the distance from Chicago to San Francisco would be expressed as miles and the width of an eyelashes would be millimeters and the lenght of a paperclip would be centimerters.

In which case would it be most appropriate to use feet as a unit of measurement? C. height of a door

The length of length of a paper clip and the width of an eyelash would be too small. It could not be measured by feet. The distance from Chicago to San Francisco would be too long and should be measured by miles.

I hope this helps! :)
~ erudite