Across
- 4. a flat shape with five sides and five angles
- 6. a flat shape with three straight sides and three angles
- 7. a straight line from one side of a circle to the other side, passing through the centre of the circle, or the length of this line
- 11. the supplement of an interior angle of a polygon
- 13. Ithe circumscribed circle or circumcircle of a polygon is a circle which passes through all the vertices of the polygon.
- 16. secant a straight line that intersects a curve at two or more points
- 17. having four straight equal sides and 90˚ angles at the corners
- 20. a polygon with all sides and all angles equal
- 23. a shape with seven straight sides
- 24. a triangle in which two of the sides are the same length
- 25. a straight line that touches the outside of a curve but does not cut across it
- 28. a plane figure bounded by two radii and the included arc of a circle
- 29. not leaning to one side or the other but exactly vertical
- 31. a polygon with 10 sides and 10 angles
- 32. a center of a inscribed circle
- 33. it is a line segment from the center to the midpoint of one of its sides
Down
- 1. to divide something into two equal parts
- 2. a straight line joining two points on a curve
- 3. a point where lines intersect
- 5. the point of intersection of the three mid line
- 8. a tangent which externally
- 9. a tangent which internally
- 10. a triangle which inscribed in a circle
- 12. a triangle whose three sides are all the same length
- 14. a nine-sided polygon
- 15. a flat shape with eight sides and eight angles
- 18. the angle inside two adjacent sides of a polygon
- 19. a shape with six sides
- 21. a flat shape with three or more sides
- 22. the distance or measurement around the outside of a circle or any round shape
- 26. a twelve-sided polygon
- 27. a flat shape with four straight sides
- 30. the length of a line segment between the center and circumference of a circle or sphere