Across
- 4. a straight line from the center to the perimeter of a circle
- 6. a three-sided polygon
- 8. a plane curve with every point equidistant from the center
- 9. lines that will never intersect
- 12. space between two objects
- 13. a parallelogram with four right angles
- 14. the total length of a shapes boundary
- 15. extending toward the middle
Down
- 1. a polygon with four equal sides and four right angles
- 2. a quadrilateral with one pair of parallel sides
- 3. the length of the closed curve of a circle
- 5. a quadrilateral whose opposite sides are parallel and equal
- 7. a point where two or more curves, lines, or edges meet or intersect.
- 10. pace taken up by a flat (2-D) surface or shape of an object.
- 11. the length of a straight line through the center of a circle