Across
- 4. An eight-sided shape
- 5. The line across a circle through its center
- 6. a triangle with all sides equal and all angles equal
- 8. The "fence" around the outside of a shape
- 11. A round shape
- 13. We usually use 3.14 to represent this
- 15. Two lines that run side by side and never intersect
- 17. A 3-sided shape
- 18. A five-sided shape
Down
- 1. A shape with four right angles and equal sides
- 2. The cubic units required to fill the inside of a shape
- 3. This and the height are connected to the right angle in a triangle
- 7. The line from the center out to any point on the outside of the circle
- 9. a quadrilateral plane figure having two parallel and two nonparallel sides
- 10. A shape with four right angles and opposite sides are equal lengths
- 12. This type of angle is 90 degrees
- 14. A six-sided shape
- 16. The square units covering the inside of a shape