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| A straightforward figure that is not characterized in state of various other figures. You are watching: An angle formed by opposite rays | |
| Collinear | Points the lie ~ above the very same line. |
| Plane | A flat surface that has no thickness and also extends forever. |
| Line | A straight course that has actually no thickness and also extends forever. |
| Point | A location that has actually no size. |
| Coplanar | Points the lie in the exact same plane. |
| Endpoint | A allude at an finish of a segment or the starting point that a ray. |
| Ray | A component of a line that starts in ~ an endpoint and also extends forever in one direction. |
| Postulate | A statement the is embraced as true there is no proof, additionally called one axiom. |
| Vertex | The typical endpoint of the sides of one angle. |
| Opposite rays | Two rays that have a typical endpoint and kind a line. |
| Segment | A component 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 developing a number that is considered to it is in mathematically precise. |
| Between | Given three points A, B, and also C, B is between A and C if and also only if all 3 of the points lie top top the exact same line, and abdominal + BC = AC. |
| Coordinate plane | A airplane that is split into 4 regions by a horizontal line dubbed the x-axis and also a vertical line dubbed the y-axis. |
| Coordinate | A number supplied to determine the ar of a point. |
| Congruent segments | Two segment that have the exact same length. |
| Degree | A unit of edge measure. |
| Midpoint | The allude that divides a segment right into two congruent segments. |
| Bisect | To divide into two congruent parts. |
| Angle | A number formed by 2 rays through a typical endpoint. |
| Measure | The usage of units 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 2 intersecting lines. |
| Straight angle | An angle developed by 2 opposite beam that actions 180°. |
| Acute angle | An angle the measures higher than 0° and also less 보다 90°. |
| Right angle | An angle that measures 90°. |
| Interior of an angle | The collection of all points between the political parties of one angle. |
| Obtuse angle | An angle that measures higher than 90° and also less than 180°. |
| Exterior of one angle | The set of every points exterior an angle. |
| Adjacent angles | Two angles in the same aircraft with a common vertex and a typical side, yet no common interior points. |
| Complementary angles | Two angles whose measures have actually a amount of 90°. |
| Supplementary angles | Two angle whose measures have actually a amount of 180°. |
| Angle bisector | A beam that divides an angle into two congruent angles. |
| Linear pair | A pair of nearby angles who noncommon sides space opposite rays. |
| Congruent angles | Angles that have actually the same measure. |
| Image | A shape that outcomes from a transformation of a figure. |
| Preimage | The original figure in a transformation. |
| Reflection | A change across a line. |
| Transformation | A readjust in the position, size, or form of a figure. |
| Rotation | A transformation about a point P, such the each point and its image are the same distance indigenous P. |
| Translation | A transformation in which all the point out of a figure move the same distance in the exact same direction. |
| leg | One of the two sides the the best triangle that type the appropriate angle. |
| Area | The number of nonoverlapping unit squares of a provided size the will specifically cover the inner of a aircraft figure. |
| Hypotenuse | The side opposite the right angle in a appropriate triangle. |
| Length | The distance between the two endpoints of a segment. |
| base | Any next of a triangle. |
| Height | Asegment from a crest that creates a right angle with a line containing the base. |
| Radius | A segment whose endpoints room the facility of a circle and also a suggest on the circle, or the street from the facility of a circle come any allude on the circle. |
| Perimeter | The sum of the next lengths the a closed plane figure. |
| pi | The ratio of the circumference of a circle to its diameter, denoted through the Greek letter π. |
| Circumference | The distance roughly the circle. See more: Oil Reset &Raquo; Blog Archive 2005 Honda Crv Maintenance Required Light ? |
| Diameter | A segment the passes through the center of a circle and also whose endpoints room on the circle, or the size of together a segment. |
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