Enter the midpoint of the segment whose endpoints are (6, 9) and (−4, 12).

  (1, 10.5)

Step-by-step explanation:

The midpoint is the average of the endpoint coordinates:

  ((6, 9) +(-4, 12))/2 = (6-4, 9+12)/2 = (2, 21)/2 = (1, 10.5)

The midpoint of the segment is (1, 10.5).

by definition, an arc subtended by a central angle of some given measure has the same measure. so .

if you was gonna solve for a, a is a   < -12