Respuesta :

Answer:

B = 61

Step-by-step explanation:

Remember that the interior angles of triangles always equal 180 degrees.

58 + 61 + B = 180        Combine like terms

119 + B = 180  

-119         -119               Subtract 119 from both sides

B = 61

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B equals 61 because it is a triangle and it equals a certain amount and it is 58 and 61 so the other has to be 61