2. $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 $200 $300 $400 $100 Naming Polygons & Angles Angle Relationships Interior & Exterior Angles Possible Triangles Angle Algebra $500

3. What do you call a polygon with 5 sides?

4. What is a pentagon? Click Anywhere to Continue

5. Name the angle.

6. What is ∠ LMN? Click Anywhere to Continue

7. What do you call a polygon with 7 sides?

8. What is a heptagon? Click Anywhere to Continue

9. Name the angle.

10. Click Anywhere to Continue What is ∠ CBK?

11. What do you call a polygon with 12 sides?

12. What is a dodecagon? Click Anywhere to Continue

13. Suppose the measure of an angle is 35°. What is the measure of its complement?

14. What is 55°? Click Anywhere to Continue

15. Suppose two angles are supplementary and one of them measures 74°. What is the measure of the other angle?

16. Click Anywhere to Continue What is 106°?

17. Name a pair of adjacent angles that are not a linear pair.

18. What is: ∠ AOE and ∠ EOD ∠ BOA and ∠ BOC ∠ BOA and ∠ AOE Click Anywhere to Continue

19. Name a pair of vertical angles.

20. What is: ∠ BOC and ∠ EOD ∠ BOE and ∠ COD Click Anywhere to Continue

21. Use the figure below which shows parallel lines and a transversal. The measure of ∠ 3 is 129°. Find the measures of ∠ 2, ∠ 4, and ∠ 7.

22. What is: ∠ 2 = 129° ∠ 4 = 51° ∠ 7 = 129° Click Anywhere to Continue

23. What is the interior angle sum of a quadrilateral?

24. What is 360°? Click Anywhere to Continue

25. What is the exterior angle sum of any polygon?

26. What is 360°? Click Anywhere to Continue

27. What is the interior angle sum of nonagon?

28. What is 1260°? Click Anywhere to Continue

29. If one interior angle of a polygon measures 120°, what is the measure of one of its exterior angles?

30. What is 60°? Click Anywhere to Continue

31. What is the measure of one interior and one exterior angle of a decagon?

32. Click Anywhere to Continue What is 144° and 36°?

33. Is a triangle with angles measuring 27°, 55°, and 99° possible? Explain why or why not.

34. No, because the sum of a triangle’s interior angles is exactly 180° not 181°. Click Anywhere to Continue

35. Is a triangle with sides measuring 5, 6, and 7 possible? Explain why or why not.

36. Yes, because the given side lengths satisfy the Triangle Inequality Theorem: a + b > c 5 + 6 > 7 6 + 7 > 5 5 + 7 > 6 Click Anywhere to Continue

37. Is a triangle with sides measuring 13, 5, and 46 possible? Explain why or why not.

38. Click Anywhere to Continue No, because the given side lengths do not satisfy the Triangle Inequality Theorem: a + b > c 13 + 5 > 46

39. Is a triangle with sides measuring 8, 9, and 17 possible? Explain why or why not.

40. Click Anywhere to Continue No, because the given side lengths do not satisfy the Triangle Inequality Theorem: a + b > c 8 + 9 > 17

41. A triangle has sides 9 and 4 units. The measurement of the longest side is missing. Sam says that one possibility for the unknown side length is 14. Do you agree with Sam? Why or why not?

42. Click Anywhere to Continue No, because a triangle with sides 9, 4, and 14 would not satisfy the Triangle Inequality Theorem: a + b > c 9 + 4 > 14

43. Solve for x.

44. What is x = 10? Click Anywhere to Continue

45. Solve for x.

46. What is x = 5? Click Anywhere to Continue

47. Solve for x.

48. Click Anywhere to Continue What is x = 20?

49. Solve for x.

50. What is x = 3? Click Anywhere to Continue

51. Solve for x.

52. What is x = 32.7272…? Click Anywhere to Continue