Please draw the mohr circles by hand or electronically so I can see how they are created. I would really appriciate it$,$ thank you!!

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$8\mathrm{.}23$ A triaxial specimen of loose sand is tested using a method of compression in which the major principal stress is kept the same, while the minor principle stress is reduced until failure occurs $($compression unloading$).$ The sample is first consolidated nonhydrostatically, with ${}_1=15$kPa and ${}_3=10$kPa. At failure, the angle of internal friction is $)=(0.($a$)$ Draw the Mohr circles for both initial and $"$at failure" conditions. $($b$)$ What will be the major and minor principal stresses at failure?