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| 1 | Circle |
| 1 | Curve |
| 1 | Incidence Geometry |
| 1 | Point |
| 1 | Metric Space |
| 1 | Fix |
| 1 | Line Segment |
| 2 | Fixed Point Arithmetic |
| 4 | Perpendicular Bisector |
| 5 | Center Of A Triangle |
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Locus
Locus (from Latin locus `place, region') is a set of points satisfying a certain condition and such that no point outside the set satisfies this condition.
For example, in the plane
the locus of such point that is at a fixed
distance
from a fixed point
is the circle
with centre
and radius
; the locus of such point which is equidistant from both ends of a line segment
is the perpendicular bisector
of this line segment.
In general, the loci in the plane are geometric curves; thus one may speak of locus curves.