AB | |

A straightforward figure that is not defined in state of various other figures. You are watching: A linear set of points with a unique starting point and extending infinitely in one direction | |

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

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

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

Point | A place that has no size. |

Coplanar | Points that lie in the same plane. |

Endpoint | A point at an end of a segment or the starting point of a ray. |

Ray | A component of a line that starts in ~ an endpoint and extends forever in one direction. |

Postulate | A statement the is welcomed as true without proof, likewise called an axiom. |

Vertex | The common endpoint the the sides of an angle. |

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

Segment | A part of a line consisting of 2 endpoints and all points between them. |

Distance | The absolute worth of the distinction of the collaborates of two points. |

Construction | A technique of developing a number that is taken into consideration to it is in mathematically precise. |

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

Coordinate plane | A airplane that is divided into 4 regions by a horizontal line dubbed the x-axis and a vertical line dubbed the y-axis. |

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

Congruent segments | Two segment that have actually the exact same length. |

Degree | A unit of edge measure. |

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

Bisect | To divide into two congruent parts. |

Angle | A number formed by two rays through a usual endpoint. |

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

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

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

Straight angle | An angle created by 2 opposite rays that steps 180°. |

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

Right angle | An angle that procedures 90°. |

Interior of an angle | The collection of all points in between the sides of one angle. |

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

Exterior of an angle | The set of every points outside an angle. |

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

Complementary angles | Two angles whose measures have a sum of 90°. |

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

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

Linear pair | A pair of surrounding angles whose noncommon sides space opposite rays. |

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

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

Preimage | The original number in a transformation. |

Reflection | A transformation across a line. |

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

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

Translation | A revolution in which all the point out of a figure move the same distance in the same direction. |

leg | One that the 2 sides of the best triangle that kind the appropriate angle. |

Area | The number of nonoverlapping unit squares that a provided size the will specifically cover the internal of a aircraft figure. |

Hypotenuse | The next opposite the ideal angle in a right triangle. |

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

base | Any side of a triangle. |

Height | Asegment indigenous a crest that forms a right angle with a heat containing the base. |

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

Perimeter | The sum of the next lengths the a closed airplane figure. |

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

Circumference | The distance approximately the circle. See more: Is Nabr Acidic Basic Or Neutral ? Explain Is Nabr An Acid Base Salt Or Other |

Diameter | A segment the passes v the facility of a circle and whose endpoints are on the circle, or the length of together a segment. |