9000036103

Three forces $F_1$, $F_2$ and $F_3$ act on the same body in the same point and the total force on the body is zero (the forces cancel). The first two forces are $F_1=8\mathrm{N}$ and $F_2=10\mathrm{N}$ and the angle between $F_1$ and $F_2$ is ${55}^{\circ }$. Find the angle between $F_3$ and $F_1$. Round your answer to the nearest degrees.