Structure and shape of the solar corona during the total solar eclipse on 29 March 2006 were studied. Corona on 29 March 2006 was classified as corona of the intermediate pre-minimal type with northern and southern polar ray systems over polar coronal holes and six streamers of different brightness, located in middle and low heliographic latitudes. It was found that all of the coronal structural features have their counterparts on photosphere-chromosphere level at the limb or near it. The flattening index was determined to be 0.17.