A Tri-axial shear test was performed on a well-drained sand sample. The normal stress on the failure plane and the shearing stress on the failure plane were determined to be 50 kPa and 30 kPa, respectively.br a. Determine the angle of internal friction of the sandbr b. Determine the angle, in degrees, of the failure plane with respect to the horizontal planebr c. Determine the axial stress applied to the specimenbr -br HPGE CE Board Problem 31 (Hydraulics and Geotechnical Engineering) - CE Nov 2023br -br paki pindot po sa "LIKE" button mga Engr.br and click SUBSCRIBE na rin po if hindi pa po kayo naka "SUBSCRIBE"br br Maraming salamat po sa inyo mga Engineers and Future Engineers.br mabuhay po kayong lahat.