Across
- 2. a straight line extending from a point
- 3. it has zero radius
- 6. an inward curve
- 9. a triangle with all the sides are the same length
- 11. a closed shape with straight lines
Down
- 1. a triangle which has three sides that are all different lengths
- 4. a triangle with two sides that are the same length
- 5. shaped like a cube
- 7. formed by two rays meeting at a common endpoint
- 8. a four-sided shape with two parallel sides
- 10. something bugling outside in a curve