If you enter 5 in the degrees input field and 30 in the minutes input field and leave the seconds input field its default 0, then this equation will show the result as:Degrees=5.5oDegrees=5.5o = 5 Deg + 30603060 DegGreat Circle Calculators...
Attempts to switch to Decimal Degrees, after setting the display units to Degrees Minutes Seconds on the General tab of the Data Frame Properties dialog box, fail. However, this issue does not occur if the data frame display units are modified on the Data View tab of the ArcMap Op...