Respuesta :
Answer:
50
Step-by-step explanation:
a triangle's sum of all angles is 180 degrees
so a+b+c=180
we know c=80
and a=b
so that'll be
2y+80=180
subtract 80 from each side
2y=100
divide by 2
y=50
Answer:
50
Step-by-step explanation:
a triangle's sum of all angles is 180 degrees
so a+b+c=180
we know c=80
and a=b
so that'll be
2y+80=180
subtract 80 from each side
2y=100
divide by 2
y=50