Respuesta :

Assuming that you meant m<3, m<2 = 77. 

m<2 = x

32 + 71 + x = 180
Because the interior angles of a triangle equal 180, simply add 32, 71, and x, and set it equal to 180. Then, solve for x.
103 + x = 180

x = 77

Hope this helps!! :)

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