1. Chapter 3

2. Name the following angles: 5 6

3. Corresponding Angles (corr s )

4. If lines are parallel, then corr s are _______

5. If lines are parallel, then corr s are congruent: ( (

6. Name the following angles: 1 2

7. Alternate Interior Angles (alt-int s )

8. If lines are parallel then alt-int s are ________

9. If lines are parallel then alt-int s are congruent: ) (

10. Name the following angles: 1 2

11. Same-Side Interior Angles (s-s int s )

12. If lines are parallel then s-s int s are _________

13. If lines are parallel then con-int s are supplements: 1 2 m 1 + m 2 = 180 0

14. A(n) __________ triangle has no congruent sides

15. A scalene triangle has no congruent sides

16. A(n) _________ triangle has at least 2 congruent sides.

17. An isosceles triangle has at least 2 congruent sides.

18. The congruent sides of an isosceles triangle are called _________.

19. The congruent sides of an isosceles triangle are called legs.

20. A(n) __________ triangle has 3 congruent sides

21. An equilateral triangle has 3 congruent sides

22. A(n) __________ triangle has 3 angles less than 90 0

23. An acute triangle has 3 angles less than 90 0

24. always, sometimes or never? An equilateral triangle is __________ an isosceles triangle

25. An equilateral triangle is always an isosceles triangle

26. always, sometimes or never? An isosceles triangle is ________ an equilateral triangle

27. An isosceles triangle is sometimes an equilateral triangle

28. Name the sides:

29. leg hypotenuse

30. The sum of the interior angles of ANY triangle = ________ 0

31. The sum of the interior angles of ANY triangle = 180 0 1 2 3 m 1 + m 2 + m 3 = 180 0

32. m 4 = ______ + _______ 1 2 34

33. m 4 = m 1 + m 2 1206040 80

34. Is the following polygon convex or concave?

35. concave

36. Always, sometimes or never? 1. A triangle is ___________ convex. 2. A quadrilateral is __________ convex.

37. 1. A triangle is always convex. 2. A quadrilateral is sometimes convex:

38. Number of SidesName of Polygon 3 4 5 6 8

39. Number of SidesName of Polygon 3 Triangle 4 Quadrilateral 5 Pentagon 6 Hexagon 8 Octagon

40. A regular polygon is _________ and ___________.

41. A regular polygon is equilateral and equiangular

42. The INTERIOR angles of a convex polygon total ________.

43. The INTERIOR angles of a convex polygon total (n – 2)180 number of sides

44. The EXTERIOR angles of a convex polygon total ________ 0

45. The EXTERIOR angles of a convex polygon total 360 0

46. Find the slope using the Slope Formula: A (x 1, y 1 ) B (x 2, y 2 )

47. y 1 – y 2 rise x 1 – x 2 run Slope (m) =

48. State the slope: y = 1/3x + 4

49. Slope = 1/3

50. Parallel lines have the _______ slope.

51. Parallel lines have the same slope.

52. The slope of horizontal lines is ___________

53. The slope of horizontal lines is 0: rise run == 0 0 )( Slope

54. The slope of vertical lines is ________________

55. The slope of vertical lines is undefined: rise run = undefined )( Slope = 0

56. The slopes of perpendicular lines are _______________.

57. The slopes of perpendicular lines are opposite reciprocals. (Ex 4/5 and –5/4)

58. Graph y = 2/3x - 1

59. x y..

60. Find the slope and y-intercept: 4x – 5y = 20

61. 4x – 5y = 20 -5y = -4x + 20 y = 4/5x - 4 slopey-intercept

62. Write the equation of a line with slope 2/3 and passing through (-1, 4)

63. y – y 1 = m (x – x 1 ) y – 4 = 2/3 (x + 1) y – 4 = 2/3x + 2/3 3y – 12 = 2x + 2 2x – 3y = -14 Standard Form

64. Chapter 3 Constructions 1.Construct a perpendicular through a point on a line 2.Construct a perpendicular through a point NOT on a line 3.Construct a parallel through a point not on a line