Respuesta :

the complete question in the attached figure

we have that
m∠1=58°
m∠7=?
 we know that
m∠1+m∠3=180°------------> supplementary angles
and 
m∠3=m∠7--------------------> corresponding angles
then
m∠3=180°-m∠1-----------> m∠3=180°-58°=122°

m∠7=m∠3=122°

the answer is m∠7=122°


Ver imagen calculista

Answer:

The answer is 122 degrees

Step-by-step explanation:

corresponding angles have together 180 degrees so the answer would be 180 - 58 =122 degrees