Answer:
Point B is equal to sin(200°).
Explanation:
The given expression is
Notice that the angle is 200°, which must be in quadrant III of the coordinate system.
Remember, quadrant I is defined from 0° to 90°, quadrant II from 90° to 180°, quadrant III from 180° to 270°, and quadrant IV from 270° to 360°. So, angle 200° is between 180° and 270°.
Therefore, point B is equal to sin(200°).