The Interface Angle from Rise over Run calculator computes the outer angle made by two intersecting right triangles defined by their pitch defined as rise over run.
INSTRUCTIONS: Enter the following:
Interface Angle (B): The calculator returns the angle in degrees. However, this can be automatically converted to compatible units via the pull-down menu.
The formula for the exterior angle of intersection of two right triangles is:
B = π + P1 - P2
Note: P1 and P2 are two pitches. They are converted to radian angles.
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