Question

Arrange the following lengths in the increasing order of magnitude.

• A. 1 metre
• B. 1 centimetre
• C. 1 kilometre
• D. 1 millimetre
  

Answer 1

The relationship between metre, millimetre, centimetre, and kilometre is as follows:
1 km = 1000 m
1 m = 100 cm
1 cm = 10 mm
Therefore, millimetre is the unit with the smallest magnitude among the given, followed by centimetre, metre, and kilometre accordingly.