Keynote for iPad not displaying "widescreen"

So I just purchased keynote for the iPad with hopes to use it in a class I am teaching in a few days. I do not have keynote on my computer but am using powerpoint and everything transfered over to the ipad and is working in keynote. However, when connecting my ipad to a TV or projector, I am only seeing what appears to be a 4:3 aspect ratio and it is not filling the whole screen (16:9 aspect ratio). I did create the presentation using the 16:9 ratio though. I originally thought it may be a conversion from powerpoint issue, so I then created a quick testing presentation inside keynote (remember I only have keynote on the ipad and not on my computer), and it still displayed in the 4:3 ratio. Is there any way to fix this and display my presentaion on the whole screen?