A decimeter is a unit of length in the metric system, equal to one-tenth of a meter. It is commonly used in various fields, such as science and engineering, to measure smaller distances. One decimeter is equivalent to 10 centimeters or 100 millimeters.
A decimetre (not decimiter) is longer.
1 meter=10 decimeters
Equal. Because 1 decimiter=10 centimeters. So 3 decimeters are 30 centimeters.
Equal. Because 1 decimiter=10 centimeters. So 3 decimeters are 30 centimeters.