I believe this is the same old bug but I thought I'd mention it again.
Using Civil 3D 2010.
Command:[b] _AeccCgAng[/b]
Select first line or [Points]:
Second line:
The acute [b]angle is 89.4622[/b] (dms)
The obtuse angle is 270.1338 (dms)
Select first line or [Points]:
Command:
Command:
Command: [b]_dimangular[/b]
Select arc, circle, line, or <specify vertex>:
Select second line:
Specify dimension arc line location or [Mtext/Text/Angle/Quadrant]:
[b]Dimension text = 90d13'38"[/b]
Line information.
Command: _AeccCgList
Select object or [Points]:
-------------------------------------------------------------------
LINE DATA
-------------------------------------------------------------------
Begin . . . . . X: 498679.34' Y: 1345808.21'
End . . . . . . X: 498685.82' Y: 1346245.86'
Distance: 437.69' Course: N0° 50' 55"E
Select object or [Points]:
-------------------------------------------------------------------
LINE DATA
-------------------------------------------------------------------
Begin . . . . . X: 498660.83' Y: 1346246.13'
End . . . . . . X: 499996.51' Y: 1346231.64'
Distance: 1335.77' Course: S89° 22' 43"E