Respuesta :

renknee

Answer:

∠B = 116.4°

Step-by-step explanation:

1. If angle ∠B is a supplement of ∠A, that means they both add up to 180°.

2. Given that ∠A is 63.6°, we just have to subtract that from 180:

  • [tex]180-63.6[/tex]
  • [tex]116.4[/tex]  

Therefore, ∠B = 116.4°.

chetankachana

Answer:

m∠B = 116.4°

Step-by-step explanation:

Supplementary angles add up to 180°

190° - 63.6° = 116.4°

m∠B = 116.4°

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-Chetan K

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