# a. A line in the plane is a set of points. If `1 and `2 are two different lines, what

**Chapter 12, Problem 12.4**

(choose chapter or problem)

a. A line in the plane is a set of points. If `1 and `2 are two different lines, what can we say about j`1 \ `2j? In particular, find all possible values of j`1 \ `2j and interpret them geometrically.b. A circle in the plane is also a set of points. If C1 and C2 are two different circles,what can we say about jC1 \ C2j? Again, interpret your answer geometrically

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