Respuesta :

Answer:

  • ∠DBC = 25°
  • ∠DCB = 65°
  • ∠ACD = 25°

Step-by-step explanation:

All the right triangles are similar, so all will have the same angles.

The missing angle (B) in ΔABC is the complement of the given one:

  ∠DBC = 90° - 65° = 25°

The missing angles in the smaller triangles are the complements of the known acute angles in those triangles.

A diagram can help you see this.

Ver imagen sqdancefan