Respuesta :

Answer:

99

Step-by-step explanation:

180-81 = 99

Hope this helps!

Anwser: B

Step-by-step explanation:

*Both angle 3 & 4 make a linear angle

*A linear angle equals to 180 degrees

1) 180 -81 = 99 degrees

The anwser is B, hoped that helped ;)

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