Answer:
a = 93°, b = 120°, c = 150°
Step-by-step explanation:
b + 36 = 78 × 2 => b + 36 = 156 => b = 120°
87 × 2 - b = the minor arc between a and 78
=> 174 - 120 = 54
54 + b + 36 + c = 360
=> 54 + 120 + 36 + c = 360
=> c = 150°
(c + 36) ÷ 2 = a
=> (150 + 36) ÷ 2 = a
=> a = 93°
55x
5
17. 10x+24 OR 108 18. 72 19. 8.4
(10x+24)+72=180
10x+96=180
10x=84
x=8.4
10x+24
10(8.4)+24
84+24
108
33489 = 32×612
3948 = 22×3×7×47
3949 = 11×359
GCD = 1
33489 / 1 = 33489
3948 / 1 = 3948
3949 / 1 = 3949
