As per the International System of Units is a form of metric system in which distance is expressed in meters.
The given distance is 45.2 cm
Convert centimeter (cm) to SI base unit (meter)
One hundred centimeters is equivalent to one meter
I.e. 100 cm = 1 m
Therefore, the given distance of 45.2 cm =
= 45.2 cm * 1 m/100 cm = 0.452 m
Thus, the correct SI base unit for 45.2 cm = 0.452 m