Electricity out? While vacuming this morning the power went out within 3 rooms, thinking...

While vacuming this morning the power went out within 3 rooms, thinking that i just have to reset the breaker was not the answer. I have two other things (Lamps ) plugged into the extension cord. I tried to reset the bresker but no luck , still no power . I turned off the largest switch , then tried to reset the breaker, still no luck, any suggestions?
Answers:    Often the nouns to one outlet could become loose and will no longer complete the circuit ( only partly of the circuit will remain working).. The best thing to do is (with the power past its sell-by date ) open up the outlets within close proximity to the ones not working and /or the problem outlets and look for a loose nouns. If that does not help you may call for to call an electrician
Did you brand name sure to push the breaker all the style off earlier you turned it back on?