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A line of rulers from the same family
Dynasty
see , 1 standard ruler =15 cm . and we know that 1 km =100000 cm. That means ration of 15 cm and 100000 cm . no.of rulers =100000/15 =6666.66 that means 6666 rulers.
There is only one kind of line, but there are a few other line-like figures in the same family. Line: An object defined by at least two points and extends infinitely in both directions Ray: An object defined by at least two points, has a definite endpoint, and extends infinitely in one direction Line segment: An object defined by at least two points and has definite endpoints
Yes because a line can lie in many planes so one we add one point not on that line, we define a unique plane.