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Quadrilaterals
Properties of Quadrilaterals
| Question | Answer |
|---|---|
| Quadrilateral | Has 4 sides and angles add to 360 |
| Trapezoid | Has ONE pair of parallel sides (bases are parallel) |
| Isosceles Trapezoid | Has ONE pair of parallel sides AND the other two sides are congruent |
| Parallelogram | Has opposite sides parallel AND opposite sides congruent |
| Rectangle | Has all the properties of a parallelogram AND also has four right angles |
| Rhombus | Has all the properties of a parallelogram AND also has four congruent sides |
| Square | Has opposite sides parallel AND four right angles AND four congruent sides |
| Parallel Lines | Have the SAME slope |
| Perpendicular Lines | Have slopes that are opposite (change sign) reciprocals (flip fraction) |
| Slope | Rise (up/down) over Run (right/left) |
| To prove congruent sides use..... | The distance formula or the Pythagorean Theorem |
| To prove parallel or perpendicular lines use.... | Slope formula or Rise/Run |