Rhombus – a parallelogram with all sides congruent
A rhombus is a special type of parallelogram. With a rhombus, all four sides are the same length. Its a bit like a square that can ‘lean over’ and the interior angles need not be 90°. Sometimes called a diamond shape. That is how I would draw it — exaggerate the diamond shape.
Things I know about a rhombus
- 1. 4 sides and 4 angles
- 2. the sum of the interior angles is 360 and the sum of the exterior angles is 360
- 3. opposite sides are parallel
- 4. opposite sides are congruent
- 5. opposite angles are congruent
- 6. consecutive angles are supplementary
- 7. diagonals bisect each other
- 8. a single diagonal will divide a rhombus into two congruent triangles
- 9. all sides congruent
- 10. diagonals are perpendicular
- 11. diagonals bisect opposite angles
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Isn’t this pretty. I think so.
