7. 4 1 2 3

8. 4 1 2 3

9. What’s a skey?

10. Defining Circle Terms Use the examples and non-examples to write a good definition for each boldfaced term.

11. Radius: A segment from the center of a circle to any point on the circle

12. Diameter: A chord that contains the center of the circle

13. Chord: A segment whose endpoints are on a circle.

14. Tangent: A line, ray, or segment that intersects the circle in exactly one point

15. Secant: A line that intersects a circle in two points

16. Major Arc: The larger arc joining 2 points on the circumference of a circle. Greater than 180 degrees.

17. Minor Arc: The smaller arc joining 2 points on the circumference of a circle. Less than 180 degrees.

18. Semi-Circle: The arc joining the endpoints of the diameter. Exactly 180 degrees.

19. Inscribed Angle: An angle whose vertex in on the circle and whose sides are chords or secants.

20. Central Angle: An angle whose vertex is at the center of the circle

21. Inscribed: All vertices of the inside figure touch the circumference of a circle

22. Circumscribed: All vertices or edges of the outside figure touch the circumference of a circle

23. Name that vocabulary word

35. 12 34

36. 12 34

37. 12 34

38. 12 34

39. 12 34

40. 12 34