AB | |

A simple figure the is not identified in terms of other figures. You are watching: A figure formed by two rays that have the same endpoint | |

Collinear | Points the lie top top the same line. |

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

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

Point | A place that has no size. |

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

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

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

Postulate | A statement that is welcomed as true without proof, also called one axiom. |

Vertex | The typical endpoint of the sides of one angle. |

Opposite rays | Two light ray that have a common endpoint and type a line. |

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

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

Construction | A method of developing a figure that is considered to be mathematically precise. |

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

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

Coordinate | A number used to recognize 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 2 rays with a common endpoint. |

Measure | The usage of devices to uncover 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 formed by two intersecting lines. |

Straight angle | An angle developed by 2 opposite beam that actions 180°. |

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

Right angle | An edge that actions 90°. |

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

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

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

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

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

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

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

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

Congruent angles | Angles that have the same measure. |

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

Preimage | The original figure in a transformation. |

Reflection | A revolution across a line. |

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

Rotation | A change about a point P, such that each allude and its photo are the exact same distance from P. |

Translation | A change in which every the points of a number move the same distance in the exact same direction. |

leg | One of the 2 sides of the right triangle that type the best angle. |

Area | The variety of nonoverlapping unit squares the a offered size that will exactly cover the internal of a plane figure. |

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

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

base | Any side of a triangle. |

Height | Asegment native a peak that forms a ideal angle with a heat containing the base. |

Radius | A segment whose endpoints room the facility of a circle and a point on the circle, or the distance from the facility of a circle come any suggest on the circle. |

Perimeter | The sum of the side lengths of 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 roughly the circle. See more: In A Formal Outline What Should Roman Numerals Represent, Access Denied |

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