AB | |

A basic figure the is not defined in state of various other figures. You are watching: The region of a plane inside of an angle | |

Collinear | Points that lie ~ above the exact same line. |

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

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

Point | A location that has no size. |

Coplanar | Points that lie in the same plane. |

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

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

Postulate | A statement that is embraced as true without proof, likewise called an axiom. |

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

Opposite rays | Two beam that have actually a typical endpoint and form a line. |

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

Distance | The absolute value of the difference of the works with of 2 points. |

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

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

Coordinate plane | A aircraft that is split into four regions through a horizontal line called the x-axis and a upright line referred to as the y-axis. |

Coordinate | A number supplied to recognize the location of a point. |

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

Degree | A unit of edge measure. |

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

Bisect | To divide right into two congruent parts. |

Angle | A number formed by 2 rays with a common endpoint. |

Measure | The usage of units to discover a dimension or quantity. |

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

Vertical angles | The nonadjacent angles developed by 2 intersecting lines. |

Straight angle | An angle developed by 2 opposite rays that procedures 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 collection of every points in between the political parties of one angle. |

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

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

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

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

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

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

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

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

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

Preimage | The original number in a transformation. |

Reflection | A change across a line. |

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

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

Translation | A change in which every the point out of a number move the very same distance in the very same direction. |

leg | One that the two sides of the appropriate triangle that form the best angle. |

Area | The variety of nonoverlapping unit squares the a provided size that will precisely cover the interior of a plane figure. |

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

Length | The distance between the 2 endpoints that a segment. |

base | Any side of a triangle. |

Height | Asegment native a peak that develops a right angle v a heat containing the base. |

Radius | A segment who endpoints room the center of a circle and also a suggest on the circle, or the street from the facility of a circle come any point on the circle. |

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

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

Circumference | The distance about the circle. See more: How Does Seaweed Survive In The Ocean S? How Is Seaweed Adapted To Its Environment |

Diameter | A segment that passes through the center of a circle and also whose endpoints space on the circle, or the size of together a segment. |