In the adjoining figure, if ∠DAB = 60° and ∠ABD = 50°, then ∠ACB is equal to :
A. 60°
B. 50°
C. 70°
D. 80°
Answer:C
In the adjoining figure, if ∠DAB = 60° and ∠ABD = 50°, then ∠ACB is equal to :
A. 60° B. 50° C. 70° D. 80°