Question

А
If the rotation of the initial ray is anticlockwise
then the measure of directed angle is considered as
positive.
If it is clockwise then the measure of directed
angle is considered as negative.
In the ordered pair the ray OA is called the inltial
arm
Ray OB is called the terminal arm.​

Answer 1

Answer:

А

If the rotation of the initial ray is anticlockwise

then the measure of directed angle is considered as

positive.

If it is clockwise then the measure of directed

angle is considered as negative.

In the ordered pair the ray OA is called the inltial

arm

Ray OB is called the terminal arm.