Geometry Crossword

4. a polygon of eight angles and eight sides.
8. a set of line segments with a common midpoint
9. a plane figure with three straight sides and three angles.
10. a parallelogram all of whose angles are right angles especially: one with adjacent sides of unequal length.
13. a perfectly round shape
15. having a rounded and slightly elongated outline or shape like that of an egg.
18. having a rounded and slightly elongated outline or shape like that of an egg.

1. a polygon of six angles and six sides.
2. a plane figure with seven straight sides and angles.
3. a plane figure with at least three straight sides and angles, and typically five or more.
5. the surface traced by a straight line moving parallel to a fixed straight line and intersecting a fixed planar closed curve
6. a three-dimensional geometric shape that tapers smoothly from a flat base
7. a polygon of five angles and five sides.
8. half of a circle or of its circumference.
10. a parallelogram with four equal sides and opposite equal angles
11. plane figure with ten straight sides and angles.
12. a plane figure with four equal straight sides and four right angles.
13. a symmetrical three-dimensional shape, contained by six equal squares.
14. a quadrilateral with opposite sides parallel and equal.
16. a quadrilateral with at least one pair of parallel sides
17. a plane figure with nine straight sides and nine angles.