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∠APB=x,∠AQB=y and ∠AOB=z Then prove that: ∠x+∠y=∠z Also, find the value of angleCAB

Answer» ∠APB=x,∠AQB=y and ∠AOB=z
Then prove that: ∠x+∠y=∠z
Also, find the value of angleCAB


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