Geometry crossword puzzle

3. the distance across the widest part of a circle and twice the radius
5. a polygon with five sides
6. a geometric solid with a base that is a polygon and all other faces are triangles
7. lines that meet or cross
8. a polygon with three sides
9. an angle that is less the 90 degrees
11. an angle measuring between 90 and 180 degrees
12. a quadrilateral in which all sides have the same length
17. a three-dimensional figure with parallelogram faces and two parallel rectangular bases.
19. A polygon with six sides
20. a polygon with eight sides

1. an angle measuring 90 degrees
2. lines in the same plane which intersect to form a right angle.
4. Lines that lie in the same plane and never meet. Also, planes lying in space that never meet.
10. a regular quadrilateral (all sides and angles are congruent)
13. a face or surface of 3D and 2D shapes also considered as the bottom part or foundation
14. a quadrilateral with both pairs of opposite sides parallel.
15. the distance around the edge of a circle.
16. an dimensional object that has 6 faces
18. a polygon with four sides