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Geometry
Term | Definition |
---|---|
Point | A location in space - a dot on a piece of paper |
Arc | Part of a curve |
Line | Connects two points via the shortest path and continues indefinitely (forever) in both directions |
Line Segment | Part of a line between two points |
Perpendicular Line Segment | Line Segments that intersect (cross) at an angle of 90° |
Acute Angle | An angle that measures less than 90° |
Parallel Line Segments | |
Chord | A line segment joining two points on a curve. |
circumference | Distance around a circle (the perimeter) |
Diameter | A line segment (or length) joining two points on a circles circumference and passes through the circle's center (twice the length of the radius) |
Radius | Distance (line segment) from center of a circle to any point on that circle's circumference. |
Equilateral Triangle | A triangle with all three sides of equal length (each internal angles = 60°) |
Isosceles Triangle | A triangle with two equal length sides (and two equal internal angles) |
Obtuse Angle | An angle that measures more than 90° |
Right Angle | An angle that measures 90° |
Vertex | Point at which two line segments |
Scalene Triangle | A triangle with all three sides with different lengths |
intersect | (forming an angle) |