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55) m∠1 = 122°

56) m∠2 = 58°

57) m∠3 = 69°

58) m∠4 = 111°

59) m∠5 = 58°

60) m∠6 = 53°

61) m∠7 = 69°

62) m∠8 = 58°

63) m∠9 = 53°

64) m∠10 = 69°

65) m∠11 = 58°

66) m∠12 = 122°

67) m∠13 = 111°

68) m∠14 = 69°

69) m∠15 = 53°

70) m∠16 = 58°

71) m∠17 = 122°

72) m∠18 = 122°

73) m∠19 = 58°

Step-by-step explanation:

Question 56 and 67 are already given for you based on the I above.  Question 55 is 122° since m∠2 is 58° and you need 180° for a straight line.  Assuming that Question 65 and 66 are vertical to each other, it would be the same answer for 55 and 56.  Question 57 is 69° based on what is given for m∠13, same goes for Question 68.  Question 58 is the same as m∠13 for its angle.  Together m∠2 and m∠3 make up 127°, remaining is 53° for m∠6.  If z and y are congruent then m∠5 and m∠11 should also be congruent. Because m∠6 and m∠5 are given, m∠7 should be given for you in which they should all make 180°.  If line x and m are congruent then m∠18 and m∠19 should be 58° and 122° separately, ∠16 and ∠17 and vice versa. m∠5 and m∠8 should be the same. m∠7 and m∠10 should be the same and you should get the angle for m∠9.

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answer: i dont know but if you try hard you will get it right : )

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