Plane Geometry Chapter 3: The Circle
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Terms to Know:
Section 20-26: Excenter
- An excenter is the intersection of the bisectors of two exterior angles of the triangle.
Section 27-29: Loci
- A locus is the location of all the points, and only those points, that satisfy a given condition or conditions.
Section 30: Simple Loci - Determining a Locus
- (1) Prove that every point on the assumed locus satisfies the given condition.
- (2) Prove that every point that satisfies the given condition is on this assumed locus.
Section 31: Fundamental Loci Theorems
- The Distance of a Point from a Circle means the shortest distance from the point to the circle.
Section 32-38: Intersecting Loci
- A locus is a path traced by a point moving under some restriction.