The general answer is "YES". But to be more specific, I would try to use a push mower if the area is fairly large (for an area that can not be reached with a tractor), and save the trimmer for the smaller spaces because it can be hard to keep the trimmer head level so you don't scalp the grass.
#4
MowerMike
I use a very small battery powered electric mower. It weighs about 33 pounds with the battery installed and about 25 pounds with it removed. The blade is 13" and the overall width of the mower is about 15".