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JCMSMath Vocabulary
| Question | Answer |
|---|---|
| congruent | having exactly the same size and shape. |
| diameter | A line segment that passes through the center of a circle and has endpoints on the circleand is twice the radius. |
| line | a set of points that extends without end in two opposite directions. |
| line segment | part of a line with a point at each end. |
| midpoint | a point that is equal distance from the two endpoints of a line segment. |
| parallel | lines, rays, or line segments that are the same distance apart and never meet. |
| perpendicular | lines, rays, or line segments that meet at right angles. |
| radius | A line segment from the center of a circle to any point on the circle and is one half the diameter. |
| ray | A part of a line that has one endpoint and extends without end in one direction. |
| acute triangle | a triangle with all angles measuring less than 90 degrees |
| adjacent angles | Two angles that have a common vertex and one common side. |
| area | The amount of surface inside a closed boundary and is measured in square units. |
| complementary angles | Two angles whose measures have a sum of 90. |
| horizontal | In a left right orientation; parallel to the horizon. |
| Circle graph | a graph that uses sections of a circle to compare parts to a whole and parts to other parts |
| perimeter | The distance around a closed 2-dimensional shape. |
| supplementary angles | Two angles whose measures have a sum of 180. |
| vertex | The point at which two line segments, lines or rays meet to form an angle. |
| vertical | Upright; perpendicular to the horizon. |
| circumference | the distance around a circle |
| complement | all the ways that an event can not happen |
| coordinates | the numbers of an ordered pair that locate a point on a coordinate graph |
| exponent | the number that indicates how many times the base is used as a factor |