Given that angle $psq$ is in standard position and its terminal side passes through the point $(0,1)$ on the unit circle, what is the measure of angle $psq$ in degrees?

• A. $90$ degrees
• B. $270$ degrees
• C. $180$ degrees
• D. $0$ degrees

Answer: (A)

Verified step by step guidance

1. Recall that an angle in standard position has its vertex at the origin and its initial side along the positive x-axis.
2. Since the terminal side of the angle passes through the point (0, 1) on the unit circle, identify the coordinates of this point as (x, y) = (0, 1).
3. On the unit circle, the coordinates (x, y) correspond to (cos \theta, sin \theta), where \theta is the angle measure in radians or degrees.
4. Set up the equations: \cos \theta = 0 and \sin \theta = 1, and determine which angle \theta satisfies these conditions.
5. Convert the angle \theta from radians to degrees if necessary, and identify the angle measure from the given options.