The figure attached has <DEF which is an inscribed angle. An inscribed angle is an angle with its vertex on the circle which is formed by two intersecting chords. According to formulas, the measurement of arc DF is twice the measurement of ∡DEF. Arc DF is equal to 360-248 or 112. Hence <span>∡DEF is equal to 56 degrees.</span>
the complete question in the attached figure we know that angle < DEF is an inscribed angle. An inscribed angle is an angle with its vertex on the circle which is formed by two intersecting chords. The inscribed angle measures half of the arc it comprises the arc it comprises is the arc DCF the arc DCF is equal to