Length

 
6.1 Length

The diagram below shows a 15 centimeter ruler.

15 centimeter ruler

  • The length of each incision is 1 centimeter.
  • The centimeter unit is used to express the size of a short object. The symbol for centimeters is cm.
  Examples  
  40 centimeters is written as 40 cm  
  56 centimeters is written as 56 cm  
     
 

The diagram below shows a 1 meter ruler.

1 meter ruler

  • The length of each notch on a 1 meter ruler is also 1 centimeter. One meter equals 100 centimeters.
  • The meter unit is used to express the length of an object. The symbol for meter is m.
  Examples  
  3 meters is written as 3 m  
  18 meters is written as18 m