alexlee1934
alexlee1934 alexlee1934
  • 31-01-2021
  • Mathematics
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ez0225
ez0225 ez0225
  • 31-01-2021

Answer:

2y + 5y + 2y = 180

9y = 180

y = 20

Step-by-step explanation:

Degrees in a triangle: 180

All the angles must add up to 180

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