Given:
The angles SWT and WTR are formed as shown in the given figure.
To find: The angles of elevation and angle of depression.
Step-by-step explanation:
We know that,
The angle is formed by the line of sight and the horizontal plane for an object above the horizontal is the angle of elevation.
So, the angle of elevation is,
The angle is formed by the line of sight and the horizontal plane for an object below the horizontal is the angle of depression.
So, the angle of depression is
Final answer: