I am sorry about your news. It sounds like you are early stages/stage 1 to be having a hysterectomy so you may not need to have the chemo/radiation so I would be inclined to again, as said, above tell your daughter only what need to know so do not worry ie don't mention the c word. My daughter is 6 and I had told her that I had some poorly things going on in my stomach when I had colposcopy and a following infection so she knew something was wrong. When I got the diagnosis I used the word hysterectomy and told her I was having the part of my insides taken out where a baby would grow as it had gone a bit wrong and was making me poorly. She asked lots of questions which I asked basically but properly and we have never used the c word.
I had my hysterectomy last week and she has accepted it all very well, knowing that she won't get a brother or sister now. She is very interested in my scars and extremely interested in my catheter and how it works etc. so keeping her informed in a general way has worked for her without having to mention anything about a disease.
your daughter is older though. I would definitely explain about the hysterectomy but maybe not use the c word as this brings images of death into the mind. If by some ill twist of fate, you do need further treatment, then maybe have another think. As mentioned above, go on the Macmillan site for support and ask you hospital key worker nurse for advice.
ultimately it is up to you. Have a good think. Talk it over with whoever is close to you (family, friends).
i wish you lots of luck over the coming weeks. If you want to know anything, just ask! The ladies on here have been a God send at times. Also, have a look through the posts on the old forum as I have found them very helpful too (especially late at night when I cannot sleep).