ahmedislife
ahmedislife ahmedislife
  • 21-02-2022
  • Mathematics
contestada

help me with angle sum theorem please what is y

help me with angle sum theorem please what is y class=

Respuesta :

heikepowe1976 heikepowe1976
  • 21-02-2022

Answer:

y = 140

Step-by-step explanation:

All angles inside the triangle will equal 180

Set your formula up as

180 = x + 120 + 20

180 - 120 - 20 = x

40 = x

y+x will also equal 180, therefore

180 = y + x

180 = y + 40

180 - 40 = y

140 = y

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