To provide an easy to understand example, think of the Earth's equator as the solar system's plane of the elliptic. This is the reference point for all lines of latitude.
Lines of longitude pass through the equator and both poles. As such they are inclined 90 degrees from the equator.
Therefore, the referenced Trans Neptune Object (TNO) CANNOT be tilted 110 degrees from the place of the elliptic. It is possible for it to be in a retrograde orbit but that only makes it more interesting since it means that it did NOT form from the same material as the solar system.
"Ceterum censeo Hillary esse delendam."
Garde la Foi, mes amis! Nous nous sommes les sauveurs de la République! Maintenant et Toujours!
(Keep the Faith, my friends! We are the saviors of the Republic! Now and Forever!)
LonePalm, le Républicain du verre cassé (The Broken Glass Republican)
A captured wandering planet
They must be measuring from the opposite direction seeing that this object is in retrograde orbit.............
It is because it is in retrograde orbit that it’s inclination is given as 110 degrees. It is how much an object in NORMAL orbit would have to be tipped to appear to be orbiting as it is. Once you cross the 90 degree mark, you are in retrograde.