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math chapter12 vocab
| Term | Definition |
|---|---|
| Regular Polygon | A polygon with all sides and angles congruent |
| Irregular polygon | A polygon where not all sides and angles are congruent |
| Triangle | A polygon with 3 sides |
| quadrilateral | A polygon with 4 sides |
| pentagon | A polygon with 5 sides |
| hexagon | A polygon with 6 sides |
| octagon | A polygon with 8 sides |
| acute triangle | A triangle with all acute angles |
| obtuse triangle | A triangle with 1 obtuse angle |
| right triangle | A triangle with 1 right angle |
| scalene triangle | A triangle with no congruent sides |
| isosceles triangle | A triangle with 2 congruent sides |
| equilateral triangle | A triangle with all congruent sides |
| Trapezoid | Quadrilateral with 1 pair of parallel sides |
| Parallelogram | Quadrilateral with opposite sides that are congruent and parallel |
| Rectangle | Parallelogram with 4 right angles |
| Square | Parallelogram with 4 right angles and 4 congruent sides |
| Rhombus | Parallelogram with 4 congruent sides |
| circumference | Distance around the outside of a circle |
| chord | A line segment with its endpoints on the circle but doesn’t go through the center |
| radius | A line segment from the center to the outside of the circle |
| diameter | A chord that passes through the center of a circle |