Respuesta :

mhanifa

Answer:

90°

Step-by-step explanation:

PQ=PR ⇒

  • ∠PQR = ∠PRQ

QS is the bisector of angle PQR ⇒

  • ∠PQS= ∠RQS

If angle PQS=30°, find angle PSQ

∠PQS=30° ⇒

  • ∠PQR = 2*∠PQS = 2*30° = 60°

As ∠PQR = 60°,

  • ∠PRQ = 60° and ∠QPR = 60° as remaining angle

So,

  • ∠PSQ = 180° - (∠QPR + ∠PQS) = 180° - 90° = 90°