Question

What is the formula you use to convert feet to centimeters?

Answer 1

You could look this up if deriving it isn't important. Google is saying 1 foot = 30.48 cm. So you would take # feet * 30.48 cm/foot

To derive it: If you know the conversion of feet to inches (12 inches per foot), and then inches to centimeters (roughly 2.54 cm per inch), you can multiply:
\( \rm feet \times \dfrac{12 \ inches}{foot} \times \dfrac{2.54 \ centimeters}{inch} \)

Answer 2

In each case, the unit analysis is just lining up units we don't want to cancel.
feet * cm/foot => the feet cancel, leaving centimeters.
feet * inches/foot * cm/inch => The feet cancel and the inches cancel, leaving centimeters.
Does that answer your question?

Answer 3

yes thank you!!!

Answer 4

Glad to help! :)