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VGeometry1

Vocabulary for Geometry class

QuestionAnswer
Altitude Special segment in triangles passing through vertex, perpendicular to opposite side.
Bisect To cut in to two equal parts.
Centroid Point of concurrency of 3 medians in the triangle.
Circumcenter Point of concurrency of 3 perpendicular bisectors in the triangle.
Deductive Reasoning Reasoning process based on linking statements known to be true.
Inductive Reasoning Reasoning process based on drawing a conclusion from examples.
Concurrent Lines Three or more lines intersecting at a single point.
Collinear Contained in the same line.
Polygons Geometric figure formed by 3 or more non-intersecting sides.
Coplanar Contained in the same plane.
Incenter Point of concurrency of 3 angle bisectors in the triangle.
Construction Creating a figure using compass and straightedge.
Skew Two noncoplanar, non-parallel lines that do not intersect.
Theorem A geometric principle that requires proof.
Undefined Terms Point, Line, Plane.
Proof A logical argument verifying the truth of a geometric principle.
Postulate A geometric principle that doesn't require proof.
Point of Concurrency Point where three or more lines intersect.
Orthocenter Point of concurrency of 3 altitudes in the triangle.
Perpendicular Bisector Special segment in triangles perpendicular to one side and bisecting that side.
Median Special segment in triangles passing through a vertex and bisecting the opposite side.
Angle Bisector Special segment in triangles, passing through a vertex and bisecting that angle.
Sine Opposite / Hypotenuse
Cosine Adjacent / Hypotenuse
Tangent Opposite / Adjacent
Opposite Side Side furthest away from chosen angle in a right triangle.
Adjacent Side Side next to the right angle and the chosen angle in a right triangle.
Hypotenuse Longest side, opposite the right angle in a right triangle.
Trig Ratios Sine, Cosine, and Tangent
Created by: dvande02
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