Respuesta :

Answer:

52°

Step-by-step explanation:

BC is the radios so BC is perpendicilar to AC.

mBCA = 90°

<A = 180 - <B - <C

<A = 180 - 38 - 90 = 52°

Answer:

∠ A = 52°

Step-by-step explanation:

The angle between the tangent and the radius at the point of contact C is 90°

Then Δ ABC is right.

∠ A = 180° - (90 + 38)° ← sum of angles in a triangle

∠ A = 180° - 128° = 52°