tirtharisal
tirtharisal tirtharisal
  • 10-04-2022
  • Mathematics
contestada

Group b.. pls help me​

Group b pls help me class=

Respuesta :

xenia168
xenia168 xenia168
  • 10-04-2022

Answer:

Step-by-step explanation:

m∠ABC + m∠BAC + m∠ACB = 180°

a + 2a + 6a = 180°

9a = 180°

a = 20°

m∠ABC = 20°

m∠BAC = 2 × 20° = 40°

m∠ACB = 6 × 20° = 120°

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