ints Angles in a Coordinate System For each of the angles a

ints) ) Angles in a Coordinate System For each of the angles (a) and (b) below, give the degree measure of a positive coterminal angle (a) -280° (b)-315° For each of the angles in (a), (b), (c), (d) below, give the degree measure of its referenceangees (a) =370° (b) =-120° (c) =-250° (d) -315°

Solution

A positive coterminal angle for the given angle can be calculated by adding any one of the multiples of 360
a)
360+(-280)=80 degrees

b)
360+(-315)=45 degrees