Determine the minimum factor of safety of a slope with the following parameters: H = 12.2 m, ß = 18.43°, y = 18.4 kN/m³, d' = 20°, c' = 23 kN/m², and r, 0.5. Use Bishop and Morgenstern's method.

Question No 1: Classify the y-coordinate of the centroid of the shaded area. Analyze_the shift of values of centroid if the angle in shaded region becomes 30 degrees, 15 degrees respectively. 17" 60°| 60° 13" 3" 15" 15"

Please answer 15.2