Respuesta :

Answer:

(first and brainliest??) 27 degrees

Step-by-step explanation:

The top triangle's missing angle is 75 degrees because 85+20=105 and 180-105=75. Knowing this, we know that the angle that's connecting the two triangles is also 75 degrees. 78+75=153 and 180-153=27

universalpi314159

Answer:

27 degrees.

Step-by-step explanation:

20 + 85 + n = 180

105 + n = 180

180 - 105 = 75

Check: 75 + 85 + 20 = 180

180 = 180

75 + 78 + n = 180

153 + n = 180

180 - 153 = 27

Check: 75 + 78 + 27 = 180

180 = 180

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