Respuesta :

wegnerkolmp2741o

Answer:

B =57

Step-by-step explanation:

The sum of the angles of a triangle is 180

A+B+C = 180

58+B+65 = 180

123+B = 180

B = 180-123

B =57

The angle sum property of a triangle:

  • The total measure of the three angles of a triangle is 180°

∠A + ∠B + ∠C = 180°

  • ∠A = 58°
  • ∠B = 65°
  • ∠C = x

⇛58° + 65° + x = 180°

⇛123° + x = 180°

⇛x = 180° - 123°

⇛x = 57°

Option B is the correct answer

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