The area equal to a square that is 1 kilometer on each side. What does kilometres mean. The unit of kilometers per hour is based on the meter which was formally defined in 1799.
The blue line will always remain a radius of the circle.
An example of a kilometer is how far a person will run if she wants to run for just over 12 of a mile. Also find the definition and meaning for various math words from this math dictionary. The value of each small division is 1 mm. According to the Oxford English Dictionary the term kilometer first came into use in 1810.