Answer:
it is an obtuse angle so that should get rid of some of the answer choices
Explanation:
? = 83°
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 )
4.5m questions
5.8m answers