Respuesta :

Answer:

b = 15°

Step-by-step explanation:

In ∆PQR,

Angle R = 60° [As Angle Q is 60°]

In ∆SPR,

Angle a = Angle SRP = 45° [ As Angle S is 90°]

Angle b = Angle R - Angle SRP

So, b = 60° - 45° = 15°

HOPE IT HELPS ^_^

RELAXING NOICE
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