bellamarie53 bellamarie53
  • 20-05-2021
  • Mathematics
contestada

Please help with number 12

Please help with number 12 class=

Respuesta :

57uy 57uy
  • 20-05-2021

Answer:

61

Step-by-step explanation:

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Аноним Аноним
  • 20-05-2021

Answer:

Step-by-step explanation:

12)

we are told that ∠ABD = 61°

then we also know that ∠ADB = 61° b/c there are the equal legs of an isosceles triangle.

and we know by inspection that the ΔBCD is identical to ΔABD so it also has 61° angles so

∠ABC = 61 + 61 =122°

:)

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