dxnnydinh
dxnnydinh dxnnydinh
  • 24-09-2020
  • Mathematics
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Please help brainiest

Please help brainiest class=

Respuesta :

ItzzRyann
ItzzRyann ItzzRyann
  • 24-09-2020

Answer:

D. 285

Step-by-step explanation:

Since all angles must add up to 360, if I haven't lost any brain cells, the last angle would need to be 285 degrees.

Answer Link
805227
805227 805227
  • 24-09-2020

Answer:

105 degrees

Step-by-step explanation:

The angles in a triangle add up to 180 degrees. You know 2 of the sides, which are 55 degrees, and 20 degrees. You add them together, and you get 75 degrees. Do 180-75 to get 105, or the missing angle.

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