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Rainbow [258]
2 years ago
10

Find the value of x.

Mathematics
1 answer:
Tresset [83]2 years ago
8 0

Answer:

  x = 117

Step-by-step explanation:

The sum of the interior angles of a pentagon is 180°(5 -2) = 540°. This means ...

  x +59 +138 +140 +86 = 540

  x +423 = 540 . . . simplify

  x = 117 . . . . . . . . subtract 117

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