giovannijackson35
giovannijackson35 giovannijackson35
  • 21-01-2021
  • Mathematics
contestada

А
D
50°
B
с
O 25°
O 30°
O
100°
O 50°

А D 50 B с O 25 O 30 O 100 O 50 class=

Respuesta :

jimrgrant1 jimrgrant1
  • 21-01-2021

Answer:

∠ CBA = 100°

Step-by-step explanation:

Since BD bisects ∠ CBA , then

∠ ABD = ∠ CBD = 50°

∠ CBA = ∠ CBD + ∠ ABD = 50° + 50° = 100°

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