<p>The presence of flaws in the form of cracks, fissures, and joints is common in rock engineering, and it is crucial to assess the response of the rock under different loading conditions due to the existence of flaws. In this study, triaxial compression tests have been conducted on model rock specimens consisting of two non-parallel open flaws dipping towards each other at various angles. Significant strength anisotropy in the model rock specimens in triaxial compression corresponding to different dip angles of the flaws was found. Further, anisotropy in deformation in the lateral directions was observed under a given confining stress. The flawed rock specimens have been found to typically fail mainly due to anti-tensile and tensile wing cracks originating from different flaw tips. The orientation of flaws and the level of confining pressures influence the crack initiation, which shows their significant control on crack propagation behavior. The variation in the angle of internal friction (ϕ) with changing flaw dip angles is relatively insignificant, implying tensile failure mechanisms rather than shear-dominated failure.</p>