Review Crossword

1. a straight line segment whose endpoints both lie on the circle
4. a polygon with four edges (or sides) and four vertices or corners
6. the shape of traffic stop signs(in US)
9. a straight line that "just touches" the circle
10. the point the point where the medians of a triangle intersect
11. a six-sided polygon
12. a line segment from the center to the midpoint of the chord
14. a line segment that joins the center of a circle with any point on its circumference
15. the angle inside two adjacent sides of a polygon
18. divide (a line, angle, shape, etc.) into two equal parts.
19. a polygon with three edges and three vertices
20. the portion of a circle bounded by two radii and the included arc
21. an angle has its vertex where two rays share an endpoint outside a circle
24. a triangle in which all three sides are equal
26. a triangle that it has its vertices on a circle
29. a plane figure with five straight sides and five angles.
30. twelve-sided polygon
31. the set of points which are an equal distance to a fixed point

2. a seven-sided polygon
3. the distance around circle
5. the point where the internal angle bisectors of the triangle cross
7. a rectangle in which two adjacent sides have equal length
8. a line that is tangent to a circle exists on the same plane as the circle and intersects the circle at exactly one point
13. two lines which meet at a right angle
16. a triangle that has two sides of equal length
17. A shape that has all sides of equal length and each internal angle will always be equal to 144°
22. a line that intersects a curve
23. a circle which passes through all the vertices of the polygon
25. any straight line segment that passes through the center of the circle and whose endpoints lie on the circle
27. a polygon that is equiangular (all angles are equal in measure) and equilateral (all sides have the same length)
28. nine-sided polygon