Answer:
PB = 9
Explanation:
a^2 + b^2 = c^2
PC^2 + CZ^2 = PZ^2
CZ = 12
BZ = CZ
PB^2 + BZ ^2 = PZ^2
PB=180 degrees
Step-by-step explanation: if im wrong its because im s t u p i d as h e c k
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