Across
- 2. a shape with 20 triangles
- 6. a curved shape that has two narrow pointed ends
- 7. having a form or edge that smoothly curves in and out
- 8. angle whose vertex is on the circle and whose sides are chords of the circle.
- 10. a surface or solid formed by rotating a closed curve or adonuts
- 12. two or more circles in the same plane with the same center
- 15. quadrilateral with exactly one pair of opposite sides parallel
- 16. angle under 90°
Down
- 1. agreement or harmony
- 3. are noncoplanar lines they will not intersect
- 4. an instrument for measuring angles
- 5. pair of marks used to enclose words or figures
- 9. triangle with all side different
- 11. square without rigth angle
- 13. segment that connects two points on the circle
- 14. for an acute angle of a right triangle, the ratio of the measure of the leg adjacent to the acute angle to the measure of the hypotenuse.