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Calculate the missing internal angle x.

Calculate the missing internal angle x.-example-1

1 Answer

5 votes

Answer:

x = 195

Explanation:

the sum of the interior angles of a quadrilateral is 360° , then

x + 40° + 87° + 38° = 360° ( simplify left side )

x + 165° = 360° ( subtract 165° from both sides )

x = 195°

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