Respuesta :

semsee45

Answer:

C. 100°

Step-by-step explanation:

If ΔABC ≅ ΔDEF then

  • m∠A = m∠D = 50°
  • m∠B = m∠E = 30°
  • m∠C = m∠F

The sum of the interior angles of a triangle is 180°

Therefore, m∠A + m∠B + m∠C = 180°

⇒ 50° + 30° + m∠C = 180°

⇒ 80° + m∠C = 180°

⇒ m∠C = 180° - 80°

⇒ m∠C = 100°