Respuesta :

40°

104+36=140
180-140=40

Each triangle will add up to 180°

Hope it helps

Answer:

40 degrees

Step-by-step explanation:

triangles have 180 degrees

180 = a + b + c

angle b and c are given

So 180 = a + 36 + 104

and now add them together

180 = a + 140

then subtract the 140 from both sides

40 = a

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