Question | Answer |
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 |