Geometry Crossword

1. a set of line segments with a common midpoint
3. a symmetrical three-dimensional shape, contained by six equal squares.
7. half of a circle or of its circumference.
9. a polygon of eight angles and eight sides.
10. a plane figure with seven straight sides and angles.
12. a quadrilateral with opposite sides parallel and equal.
15. the surface traced by a straight line moving parallel to a fixed straight line and intersecting a fixed planar closed curve
17. having a rounded and slightly elongated outline or shape like that of an egg.
18. plane figure with ten straight sides and angles.
19. a parallelogram with four equal sides and opposite equal angles

1. a plane figure with four equal straight sides and four right angles.
2. a plane figure with nine straight sides and nine angles.
4. a plane figure with at least three straight sides and angles, and typically five or more.
5. a perfectly round shape
6. a parallelogram all of whose angles are right angles especially: one with adjacent sides of unequal length.
8. a three-dimensional geometric shape that tapers smoothly from a flat base
10. a polygon of six angles and six sides.
11. a plane figure with three straight sides and three angles.
13. having a rounded and slightly elongated outline or shape like that of an egg.
14. a polygon of five angles and five sides.
16. a quadrilateral with at least one pair of parallel sides