|First of all do post using all CAPS. It is considered bad etiquette and also seen as SHOUTING.|
The monitor should have a power connector. You probably have not looked carefully. Look all around the back and underneath. Also look for a concealed flap which you may have to open to fit the cable into.
If you are sure it has not, then post the make and model plus any other markings on the monitor so that someone can help you.
Also is it a flat screen or CRT?
☺ When everything else fails, read the instructions.