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Someone, please help me!!

Someone Please Help Me class=

Sagot :

Answer:  

X = 12

IM not sure witch exsterio angle you are looking for but here is how you do it.

Step-by-step explanation:

[tex](5x -6 ) + 3x + 90 = 180\\x = 12\\[/tex]

That makes the exstieror angle of 3x = 144

5(12) - 6 = 126

90 = 90