9514 1404 393
Answer:
d) 15°
e) 36°
f) 39°
g) 126°
Step-by-step explanation:
Each segment from S to the vertex bisects the angle at the vertex.
∠RPS = ∠RPQ/2 = 30°/2 = 15°
∠PQS = ∠PQR/2 = 72°/2 = 36°
∠PRS = ∠PRQ/2 = 78°/2 = 39°
∠PSR = 180° -∠RPS -∠PRS = 180° -15° -39° = 126°
