Geometry, NAPX-F3-CA15 What is the size of the missing angle? `30^@` `40^@` `50^@` `60^@` `70^@` Show Answers Only `50°` Show Worked Solution `text(S)text(ince there are 360° in a quadrilateral,)` `text(Angle)` `= 360 - (70 + 120 + 120)` `= 360 - 310` `= 50°`