ANGLE allows you to display the angle formed by two
selected lines in the display plane and the plane formed 
by the two lines. For an accurate angle calculation, the 
two lines selected must actually intersect.

Select the two desired lines for angle verification.

The angle formed by the two selected lines in the display
plane is displayed in both degrees and radians (in
parentheses). Press <Enter> and the angle in the plane
formed by the two lines is displayed in degrees and 
radians.
