The area of U-diagram in finding stability of D/S slope during steady seepage, can be measured by ___________
(a) Planimeter and Rectangular plot method
(b) Fellinious method
(c) None of the mentioned
(d) All of the mentioned
I got this question in an interview for internship.
Query is from The Swedish Slip Circle Method in division Stability of Slopes of Geotechnical Engineering II