## metre

**Metre** is a unit of measurement of length. The definition for metre is the following:

1 metre is the distance light travels in 1/299 792 458 of a second in vacuum.

The symbol for metre is

**m**## decameter

**Decameter** is a multiple of the

**meter** unit. The

**deca** prefix stands for 10 therefore, 1 decameter = 10 meter units.

**Meter** is a unit of measurement of length. The definition for meter is the following:

1 decameter is equal to 10 meters,

The symbol for decameter is

**dam**