Across
- 1. the space inside a shape
- 4. four sided polygon
- 5. measure around a shape
- 8. figure formed by 2 rays
- 10. middle point of a line segment
- 11. quadrilateral with at least one pair of parallel sides
- 13. triangle where all 3 sides have equal length
- 15. perimeter of a circle
- 16. where two lines meet
- 17. polygon with three edges and three verticals
- 18. triangle where 2 sides make a 90 degree angle
- 19. three dimensional shape
Down
- 2. half the diameter
- 3. lines that intersect to make 90 degree angles
- 6. lines that never intersect
- 7. having the same size and shape
- 9. triangle with 2 sides of equal length
- 12. straight line that passes through a circle
- 14. Pythagorean theorem
- 15. three dimensional solid