(1-8₁) 2) Consolidated drained (CD) triaxial tests were conducted on three undistributed specimens of the same overconsolidated clay. Results of the tests are shown in the following table. Estimate (graphically) the

effective shear strength parameters c' and Ø' of the tested clay (ignore the effect of changing sheared areas during test). Test No. All-around Pressure ((kPa) Deviator Stress (kPa) 1 98.0 2 145.5 3 182.2 23.4 47.7 67.2