27 Nov tetrahedron
[vc_row content_placement="middle"][vc_column width="2/3"][vc_row_inner][vc_column_inner width="1/4"][vc_column_text][/vc_column_text][/vc_column_inner][vc_column_inner width="3/4"][vc_column_text css=".vc_custom_1539341633550{padding-top: 60px !important;}"] tetrahedron in geometry, a tetrahedron, also known as a triangular pyramid, is a polyhedron composed of four triangular faces, six straight edges, and four vertex corners. The tetrahedron is the simplest of all the ordinary convex polyhedra and the...