The possibility to exploit the muon scattering for the elemental
discrimination of materials in a given volume is well known. When more
than one material is present along the muon path, it is often important
to discern the order in which they are stacked. The scattering angle due
to the target volume can be split into two interior angles in the
tomographic setups based on the muon scattering, and we call this
property as the triangular correlation where the sum of these two
interior angles is equal to the scattering angle. In this study, we
apply this triangular correlation for a multi-block material
configuration that consist of concrete, stainless steel, and uranium. By
changing the order of this material set, we employ the GEANT4
simulations and we show that the triangular correlation is valid in the
multi-block material setups, thereby providing the possibility of
supportive information for the coarse prediction of the material order
in such configurations.