Answer:
let the missing angle be x
[tex]29 \degree + 105\degree + x = 180\degree \\ \{{ \sf{sum \: of \: interior \: angles \: of \: triangle \}}} \\ x + 134\degree = 180\degree \\ x = 180\degree - 134\degree \\ x = 46 \degree\\ { \boxed{ \boxed{{ \bf{missing \: angle \: is \: 46\degree}}}}}[/tex]
