AutoLISP - finding dimension of an angle?

When you type in 'dimangular' in autocad does it start up that command? If not, then find out what shortcut you would type (text) to bring up that command, then use that. If 'dimangular' works as a text shortcut than it should work in the AutoLISP program. If its not working it might have to do with having an extra parenthesis or an extra space somewhere.