Across
- 2. a polygon with four equal sides and four right angles
- 5. a parallelogram with four equal sides
- 10. a straight line from the center to the perimeter of a circle
- 11. a three-sided polygon
- 13. a shape with a circular base and sides tapering to a point
- 14. a round three-dimensional closed surface
- 17. a parallelogram with four right angles
- 20. the perimeter of a circle
Down
- 1. intersects at a 90-degree angle
- 3. identical in shape and size.
- 4. a four-sided polygon
- 6. a line that touches a curve at only one point
- 7. the measure of the two-dimensional space
- 8. a portion of a circle
- 9. a part of a line that starts at a fixed point
- 12. a point where two or more curves, lines, or line segments meet
- 15. a location represented by a dot
- 16. the quality of being alike
- 18. a straight line segment that connects two points
- 19. the space between two lines or planes that intersect