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A simple figure that is not defined in state of other figures. You are watching: An angle formed by opposite rays is a | |

Collinear | Points the lie on the very same line. |

Plane | A flat surface that has no thickness and extends forever. |

Line | A straight route that has no thickness and also extends forever. |

Point | A location that has actually no size. |

Coplanar | Points the lie in the very same plane. |

Endpoint | A suggest at an finish of a segment or the starting point that a ray. |

Ray | A component of a line the starts at an endpoint and also extends forever in one direction. |

Postulate | A statement the is embraced as true there is no proof, also called one axiom. |

Vertex | The typical endpoint of the political parties of one angle. |

Opposite rays | Two beam that have a usual endpoint and kind a line. |

Segment | A component of a line consisting of 2 endpoints and also all points in between them. |

Distance | The absolute value of the difference of the coordinates of two points. |

Construction | A method of creating a figure that is considered to it is in mathematically precise. |

Between | Given three points A, B, and C, B is in between A and C if and only if all 3 of the point out lie on the very same line, and abdominal + BC = AC. |

Coordinate plane | A plane that is split into four regions by a horizontal line called the x-axis and also a upright line dubbed the y-axis. |

Coordinate | A number provided to determine the ar of a point. |

Congruent segments | Two segments that have the same length. |

Degree | A unit of edge measure. |

Midpoint | The allude that divides a segment into two congruent segments. |

Bisect | To divide right into two congruent parts. |

Angle | A number formed by 2 rays through a typical endpoint. |

Measure | The usage of systems to find a dimension or quantity. |

Segment bisector | A line, ray, or segment that divides a segment right into two congruent segments. |

Vertical angles | The nonadjacent angles created by two intersecting lines. |

Straight angle | An angle formed by 2 opposite light ray that measures 180°. |

Acute angle | An angle that measures higher than 0° and less 보다 90°. |

Right angle | An angle that steps 90°. |

Interior of an angle | The set of all points between the political parties of one angle. |

Obtuse angle | An angle that measures greater than 90° and also less than 180°. |

Exterior of one angle | The collection of all points external an angle. |

Adjacent angles | Two angle in the same aircraft with a usual vertex and also a usual side, however no typical interior points. |

Complementary angles | Two angle whose measures have actually a amount of 90°. |

Supplementary angles | Two angles whose measures have a sum of 180°. |

Angle bisector | A ray that divides one angle right into two congruent angles. |

Linear pair | A pair of adjacent angles who noncommon sides are opposite rays. |

Congruent angles | Angles that have actually the same measure. |

Image | A shape that results from a change of a figure. |

Preimage | The original number in a transformation. |

Reflection | A change across a line. |

Transformation | A readjust in the position, size, or shape of a figure. |

Rotation | A transformation about a allude P, such that each point and its image are the same distance indigenous P. |

Translation | A change in which all the clues of a number move the same distance in the same direction. |

leg | One the the two sides the the right triangle that type the ideal angle. |

Area | The variety of nonoverlapping unit squares the a given size the will exactly cover the internal of a airplane figure. |

Hypotenuse | The side opposite the appropriate angle in a ideal triangle. |

Length | The distance in between the two endpoints the a segment. |

base | Any side of a triangle. |

Height | Asegment indigenous a crest that develops a best angle with a heat containing the base. |

Radius | A segment who endpoints are the facility of a circle and also a suggest on the circle, or the distance from the facility of a circle to any point on the circle. |

Perimeter | The sum of the side lengths that a closed plane figure. |

pi | The ratio of the circumference of a circle to its diameter, denoted by the Greek letter π. |

Circumference | The distance roughly the circle. See more: What Does Cuales Mean In Spanish ? What Does Cuales Mean In Spanish |

Diameter | A segment the passes with the center of a circle and whose endpoints are on the circle, or the length of such a segment. |