I really don't understand the def. of a locus according to my book. So can someone put that in simple terms for me?


Then the question is, sketch and describe the locus of all points in a plane that are equidistant from the vertices of triangle ABC. It has a picture of an isosceles triangle beside it.

locus - definition of locus by the Free Online Dictionary, Thesaurus and Encyclopedia. (http://www.thefreedictionary.com/locus)

A locus is a set of points that satisfy a condition, in this case - all points in a plane that are equidistant from the vertices of triangle ABC.

I'm still trying to get my head around the meaning of that.