# Question #481a7

When the polymer forms from the monomers, the reaction will occur by breaking the $C = C$ double bonds to form new $C - C$ single bonds.
Therefore, all the $C$ atoms in the polymer backbone are $s {p}^{3}$ hybridized and the molecular geometry is tetrahedral.
Therefore, the $C - C - C$ bonds angle is ${109.5}^{\circ}$ through the entire polymer's backbone.