Respuesta :

the value of b is 61°.

you solve by doing this:
add up the two given angles, 58° and 61° to get 119°. then you subtract from 180° to get 61.
santibogantes

Answer:

61

Step-by-step explanation

The sum of the 3 angles of a triangle is equal to 180.

180-58-61=61

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