Respuesta :

Answer:

B

Step-by-step explanation:

57+65= 122

180-122= 58

Answer:

58

Step-by-step explanation:

Angles in a triangle add up to equal 180

So 65 + 57 + ? must equal 180

Solve for ?

65 + 57 + ? = 180

Combine like terms

122 + ? = 180

Subtract 122 from both sides

122 - 122 + ? = 180 - 122

? = 58