Q$-3$:$(15$ marks $(2))$

The following figure shows an inclined ground section with a depth of $H=10$ meters in clay soil. If the density of the clay is $)=(19$ and the value of the soil resistance $($cohesion$)$ is $(C=70),$ and the length of the circle section is $315=1,$ what is required is to find the factor of safety FS$.$ Against slipping, on the surface of a circle whose length is $315=1$ meter, and around the point $(0)$ using the slice method, noting that the dimensions of each slice are as shown in the figure. Note: Use a table to solve and make the necessarycalculations.