ABCD is a cyclic quadrilateral such that AB is a diameter of the circle circumscribing it and ∠ADC = 140°, then ∠BAC is equal to :
A. 80°
B. 50°
C. 40°
D. 30°
Answer:B
ABCD is a cyclic quadrilateral such that AB is a diameter of the circle circumscribing it and ∠ADC = 140°, then ∠BAC is equal to :
A. 80° B. 50° C. 40° D. 30°