7. TANGENTS ARCS, CHORDS, & CENTRAL ANGLES INSCRIBED ANGLES INTERIOR & EXTERIOR ANGLES LENGTHS OF SEGMENTS $100 $200 $300 $400 $500 FINAL GEOPARDY!

8. If and AB = 8, then find length of AC to the nearest tenth. AC = 11.3

9. Name a pair of triangles that are congruent and name all postulates that justify this conclusion. ΔAMT =ΔHMT by SSS, SAS, or HL

10. Given that Calculate the following angles: Each angle is 75°

11. Draw all possible common tangents of the two circles. Identify each tangent as common internal tangent or a common external tangent. Two common external tangents, one common internal tangent.

12. Given CD = 9 and DA = 8, find the length BC. BC = 15

13. List the two important differences between a minor arc and a major arc. Minor arcs are less than 180° whereas major arcs are greater than 180°. Minor arcs are named with two points, major arcs are named with three points.

14. Give the ratio of a central angle to the arc it creates. 1 : 1

15. Find the measure of the indicated arc. minor arc AB = _______major arc BAD = _______ minor arc AC = _______semicircle ABD = _______ major arc CDA = _______major arc CDB = _______ 50°230° 130°180° 230°280°

16. XY = 18.8 Given Find the length of XY to the nearest tenth.

17. Given Find the length of RT. RT = 30

18. Give the ratio of an inscribed angle to the arc it intercepts. 1 : 2

19. Find the values of x and y. x = 76°, y = 76°

20. Find the values of x and y. x = 95°, y = 70°

21. Find the values of x and y. x = 120°, y = 60°

22. Find the values of x and y. x = 70°, y = 70°

23. Provide the general formulas used to calculate the measure of an interior angle and the measure of an exterior angle. Interior Angle = (arc + arc)/2 Exterior Angle = |arc – arc|/2

24. Find the measure of angle 2 to the nearest tenth. Angle 2 =137.5 °

25. Find the measure of angle 3. Angle 3 = 40°

26. Find the measure of arc x. x = 130° or 10°

27. Given that arc CT = 80º and, find the measure of arc BT. arc BT = 10° or 150°

28. Find x. x = 4

29. Find x. x = 4

30. Find x. x = 4

31. Find x. x = 4

32. Find x. x = 6

35. Classify each numbered angle (#1-10) as central, inscribed, interior, or exterior.

36. Angle 1 is a central angle. Angle 2 is an inscribed angle. Angle 3 is an inscribed angle. Angle 4 is an inscribed angle. Angle 5 is an interior angle. Angle 6 is an interior angle. Angle 7 is an exterior angle. Angle 8 is an interior angle. Angle 9 is an inscribed angle. Angle 10 is an inscribed angle.