What is the first step in proving that the sum of the measures of triangle pqr is 180°? construct a line parallel to segment pq construct a bisector of angle p construct a midpoint of segment qr construct a perpendicular bisector of segment pr

Graph g(x)=2cosx . use 3.14 for π . use the sine tool to graph the function. graph the function by plotting two points. the first point must be on the midline and closest to the origin. the second point must be a maximum or minimum value on the graph closest to the first point.