How do you determine the quadrant in which 11π9 lies?

2 Answers
Feb 15, 2018

The negative means you go clockwise instead of counterclockwise to graph the angle. Then...

Explanation:

Then, since 119 is a little more than one, it means the angle is a little more than π (or 180 degrees). Therefore, when you graph an angle moving clockwise and go past π radians, you will be in Quadrant II

Feb 22, 2018

Second quadrant.

Explanation:

11π9=1(2π9)=π(2π9)

2ππ(2π9)=7π9

Since 7π9>π2, it is in second quadrant.

Aliter : -(11pi)/9 = -((11pi)/9) * (360/2pi) = - 220^@#

360220=140=(90+50)

It’s in second quadrant, as 140 is between 90 and 180