If P is the circum-center in ΔABC, ∠BPC = 30°, then what is the value (in degrees) of ∠BAC?
A15
B60
C75
D105
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Y^2=-20X ലാക്റ്റസ് റെക്ടത്തിന്റെ നീളം കണ്ടെത്തുക