You are shown \angle MNO∠MNO below whose measure is 152 degrees. Draw an angle bisector of \angle MNO∠MNO by clicking a dragging a ray out from the vertex at N.

What is "the ring of fire"? a. a type of volcanic eruption b. an area around the pacific ocean c. a circle of volcanoes forming over a hot spot d. a region around a cinder cone in which ash is likely to land