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Quadrilateral Vocabulary
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polygon:a closed plane figure with at least three sides that are segments
convex polygon:this polygon has no diagonal with points outside the polygon
concave polygon:this polygon has at least one diagonal with points outside the polygon
equilateral polygon:this polygon has all sides congruent
equiangular polygon:this polygon has all angles congruent
regular polygon:this polygon is both equilateral and equiangular
parallelogram:a quadrilateral with both pairs of opposite sides parallel
rhombus:a parallelogram with four congruent sides
rectangle:a parallelogram with four right angles
square:a parallelogram with four congruent sides and four right angles
kite:a quadrilateral with two pairs of adjacent sides congruent and no opposite sides congruent
trapezoid:a quadrilateral with exactly one pair of parallel sides
isosceles trapezoid:a trapezoid whose nonparallel opposite sides are congruent
consecutive angles:angles of a polygon that share a side
base angles:two angles that share a base of a trapezoid
midsegment:a segment that joins the midpoints of the nonparallel opposite sides
triangle:a polygon with three sides
quadrilateral:a polygon with four sides
pentagon:a polygon with five sides
hexagon:a polygon with six sides
octagon:a polygon with eight sides
nonagon:a polygon with nine sides
decagon:a polygon with ten sides
dodecagon:a polygon with twelve sides
Quadrilateral Vocabulary
Across:1. | a quadrilateral with both pairs of opposite sides parallel | 4. | a quadrilateral with two pairs of adjacent sides congruent and no opposite sides congruent | 5. | a quadrilateral with exactly one pair of parallel sides | 8. | a closed plane figure with at least three sides that are segments | 9. | a polygon with ten sides | 12. | a parallelogram with four congruent sides and four right angles | 17. | a polygon with eight sides |
| 18. | a polygon with three sides | 19. | a parallelogram with four right angles | 20. | this polygon is both equilateral and equiangular | 21. | a segment that joins the midpoints of the nonparallel opposite sides | 22. | a polygon with nine sides | 23. | a polygon with twelve sides |
| | Down:1. | a polygon with five sides | 2. | this polygon has all sides congruent | 3. | angles of a polygon that share a side | 6. | a parallelogram with four congruent sides | 7. | this polygon has no diagonal with points outside the polygon | 10. | this polygon has all angles congruent |
| 11. | a polygon with four sides | 13. | a trapezoid whose nonparallel opposite sides are congruent | 14. | two angles that share a base of a trapezoid | 15. | a polygon with six sides | 16. | this polygon has at least one diagonal with points outside the polygon |
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© 2013
PuzzleFast.com, Noncommercial Use Only
Quadrilateral Vocabulary
Across:1. | a quadrilateral with both pairs of opposite sides parallel | 4. | a quadrilateral with two pairs of adjacent sides congruent and no opposite sides congruent | 5. | a quadrilateral with exactly one pair of parallel sides | 8. | a closed plane figure with at least three sides that are segments | 9. | a polygon with ten sides | 12. | a parallelogram with four congruent sides and four right angles | 17. | a polygon with eight sides |
| 18. | a polygon with three sides | 19. | a parallelogram with four right angles | 20. | this polygon is both equilateral and equiangular | 21. | a segment that joins the midpoints of the nonparallel opposite sides | 22. | a polygon with nine sides | 23. | a polygon with twelve sides |
| | Down:1. | a polygon with five sides | 2. | this polygon has all sides congruent | 3. | angles of a polygon that share a side | 6. | a parallelogram with four congruent sides | 7. | this polygon has no diagonal with points outside the polygon | 10. | this polygon has all angles congruent |
| 11. | a polygon with four sides | 13. | a trapezoid whose nonparallel opposite sides are congruent | 14. | two angles that share a base of a trapezoid | 15. | a polygon with six sides | 16. | this polygon has at least one diagonal with points outside the polygon |
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© 2013
PuzzleFast.com, Noncommercial Use Only