3 years ago

What is the value of x? Enter your answer in the box. °

Mathematics

1 answer:

Monica [59]3 years ago

4 0

Answer:

x = 111

Step-by-step explanation:

Sum of interior angles= (n-2)*180= (7-2)*180 = 5*180 = 900

x + 139 + 121 + 125 + 126 + 158 + 120 = 900

x + 789 = 900

x = 900 - 789 = 111

x = 111

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