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OL Chp8
Chapter 8 Vocab
Question | Answer |
---|---|
An exact location. | Point |
A straight path that extends without end in opposite directions. | Line |
A perfectly flat surface that extends infinitely in all directions. | Plane |
It has one endpoint and extends without end in one direction. | Ray |
A part of a line or a ray that extends from one endpoint to another. | Line Segment |
An angle that measures exactly 180 degrees. | Straight |
Two angles when added together equal 90 degrees. | Complementary |
Two angles when added together equal 180 degress. | Supplementary |
Intersecting lines that form 90 degree angles. | Perpendicular |
Lines that do not intersect. | Parallel |
Lines that do not intersect and are not parallel. | Skew |
Angles that have a common vertex and a common side. | Adjacent |
Opposite angles formed by two intersecting lines. | Vertical |
Angles on the same side of the transversal and are both above or below the parallel lines. | Corresponding |
A set of all points in a plane that are the same distance from a given point. | Circle |
Part of a circle names by its endpoints. | Arc |
A line segment that passes through the center of a circle and whose endpoints line on the circle. | Diameter |
A line segment whose endpoints are any two points on a circle. | Chord |
A line segment whose endpoints are the center of a circle and any point on the circle. | Radius |
A closed plane figure formed by three or more line segments. | Polygon |
A polygon in which all sides are congruent and all angles are congruent. | Regular |
A triangle that has no congruent sides. | Scalene |
A triangle that has 2 congruent sides. | Isosceles |
A triangle with 3 congruent sides. | Equilateral |
A triangle in which all of the angles are less than 90 degrees. | Acute |
A triangle that has exactly one angle greater than 90 degrees. | Obtuse |
A triangle that has exactly one angle that is equal to 90 degrees. | Right |