How can I direct Solidwork to Identify a right surface?

Hello, We are having a problem with the measure tool in the relationship between the two faces pictured. What we need exactly is Solidworks to match the small blue face within the area circled in red where it touches the larger surface. Solidworks shows that the large blue face touches the small blue face with the property - "Is Intersected" as "true", which does not make sense to us. However, the face with the red boundary should actually touch the small blue face. We have no idea how Solidworks makes this measurement. So what we need to know is why Solidworks is choosing the larger blue face rather than the area circled in red? We would appreciate your help.Thanks for your time.

SolidworksApi macros