Respuesta :

Answer:

? = 83°

Step-by-step explanation:

the sum of the interior angles of a quadrilateral = 360°

sum the angles and equate to 360°

? + 116° + 97° + 64° = 360° , that is

? + 277° = 360° ( subtract 277° from both sides )

? = 83°

Answer:

it is an obtuse angle so that should get rid of some of the answer choices

Step-by-step explanation:

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