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3 years ago

Your solving for x .

Mathematics

1 answer:

Xelga [282]3 years ago

8 0

Answer:

x = 144°

Step-by-step explanation:

the sum of the interior angles of a polygon is

sum = 180°(n - 2) ← n is the number of sides

The figure here has n = 8, hence

sum of interior angles = 180° × 6 = 1080°, hence

129 + 132 + 136 + 124 + 141 + 158 + 116 + x = 1080

936 + x = 1080 ( subtract 936 from both sides )

x = 144°

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