Respuesta :

Answer:

m<3 = 80

Step-by-step explanation:

We know that the sum of all the angles in a triangle is 180.

Thus, we can find the m<3 using the equation 180 - (70 + 30) = m<3

Simplifying gives us m<3 = 80

Answer:

B .80

Step-by-step explanation:

all interior angles in a triangle=180

180-(70+30)

180-100

=80

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