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

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

Answer: (B)

Verified step by step guidance

1. Identify that the point (0, 1) lies on the unit circle, which means the radius from the origin to this point has length 1.
2. Recall that an angle in standard position has its vertex at the origin and its initial side along the positive x-axis.
3. Understand that the terminal side of the angle passes through the point (0, 1), which is located on the positive y-axis.
4. Recognize that the angle formed by the positive x-axis and the positive y-axis is 90 degrees.
5. Conclude that the measure of angle JHG is 90 degrees because its terminal side passes through (0, 1) on the unit circle.