Respuesta :

∠1 =    [tex] \frac{1}{2} (280 - 60) = 110[/tex]

-----------------------
Answer: 110°
-----------------------
calculista

Answer:

Option a [tex]110\°[/tex]

Step-by-step explanation:

we know that

The measurement of the external angle is the semi-difference of the arcs which comprises

so

in this problem

[tex]m<1=\frac{1}{2}(280\°-60\°)=110\°[/tex]