Respuesta :

fieryanswererft

m∠U = 80°

  • total interior angle in a triangle is 180°

m∠U + 37° + 63° = 180°

m∠U = 180° -  63° - 37°

m∠U = 80°

m<U be x

Apply angle sum property

[tex]\\ \rm\rightarrowtail x+37+63=180[/tex]

[tex]\\ \rm\rightarrowtail x+100=180[/tex]

[tex]\\ \rm\rightarrowtail x=80[/tex]