Which degrees define Quadrant II in the unit circle?

Quadrant II in the unit circle is defined by angles that range from 90 degrees to 180 degrees. The angles in this quadrant have their sine values positive and cosine values negative.

The correct answer provides the angles 120, 135, 150, and 180 degrees, all of which fall within that range:

• 120 degrees is in Quadrant II, as it is between 90 and 180 degrees.

• 135 degrees is also in Quadrant II and is exactly halfway between 90 and 180.

• 150 degrees is still within Quadrant II, being closer to 180.

• 180 degrees marks the boundary of Quadrant II but is still included in the definition as it indicates the edge of that quadrant.

In conclusion, these angles identify Quadrant II correctly, ensuring a solid understanding of their positions in relation to the entire unit circle.