JMAT_V1_N2_RP1 M. Evren Aydin Mahmut Ergut Journal on Mathematics 2277-5137 1 2 7 12 Inversion, Inverse Surface, Developable Surface, Fundamental forms, Christoffel Symbols In this paper, we define the inverse surface of a tangent developable surface with respect to the sphere with the center and the radius in 3-dimensional Euclidean space . We obtain the curvatures, the Christoffel symbols and the shape operator of this inverse surface by the help of these of the tangent developable surface. Morever, we give some necessary and sufficient conditions regarding the inverse surface being flat and minimal. April - June 2012 Copyright © 2012 i-manager publications. All rights reserved. i-manager Publications http://www.imanagerpublications.com/Article.aspx?ArticleId=1846