Respuesta :

mhanifa

Answer:

  • d) 55°

Step-by-step explanation:

CABD is half-circle as CD is diameter and cuts the circle in half

  • CABD = CA + AB + BD
  • 180° = x + 70° + x
  • 110° = 2x
  • x = 110°/2
  • x = 55°

Correct choice is d)