| Term | Definition |
|---|
| circle | The set of all points in a plane that are the same distance from a given point called the center. |
| radius | A line segment with one mid point at the center of the circle and the other end point on the circle. |
| diameter | A line segment that passes through the center of a circle and has end points on the circle. |
| chord | A line segment with end points on a circle. |
| arc | A part of a circle circle named by its endpoints. |
| central angle | An angle with its vertex at the center of a circle. |
| sector | A region enclosed by two radii and the arc joining end points. |
| polygon | A closed plane figure formed by three or more line segments and only touch at ends. |
| side | A line bounding a geometric figure |
| scalene triangle | A triangle with no congruent sides. |
| isosceles triangle | A triangle with two congruent sides. |
| equilateral triangle | a triangle with three congruent sides. |
| acute triangles | A triangle with all angles measureing less thant 90º. |
| obtuse triangles | An angle whose measure is greater than 90º but less than 180º. |
| right triangles | A triangle containing a right angle (90º angle). |
| parallelogram | A quadralateral with two pairs of parallel sides. |
| rhombus | A parallelogram with all equal sides. |
| rectangle | A parallelogram with four right angles. |
| square | A rectangle with four congruent sides. |
| trapezoid | A quad with exactly one pair of parallel sides. |
| kite | A quaralaterial with two pairs of adjacent congruent sides. |
| polygon | Closed; 3 or more segments; no curves; lines do not cross; three or more lines. |
Combine with other sets
Share on Facebook
Share on MySpace