iamthelape
iamthelape iamthelape
  • 06-10-2018
  • Mathematics
contestada

Please help. I dont undestand this

Please help I dont undestand this class=

Respuesta :

jimrgrant1 jimrgrant1
  • 06-10-2018

Ahello me again . I get 105°

since ∠A = 50° then ∠DAB = 25°

since ∠B = 100° then ∠ DBA = 50°

the sum of the angles in triangle ADB = 180°

thus ∠ADB = 180 - (25 + 50 ) 180 - 75 = 105°

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