Respuesta :

Answer:

b = 125°

Step-by-step explanation:

Supplementary angles sum to 180°, thus

a + b = 180°, that is

55° + b = 180° ( subtract 55° from both sides )

b = 125°

Answer:

125 degrees

Step-by-step explanation:

Answer:

b = 125°

Step-by-step explanation:

Supplementary angles sum to 180°, thus

a + b = 180°, that is

55° + b = 180° ( subtract 55° from both sides )

b = 125°