In ΔABC, ∠BAC = 90° and AD ⊥ BC. If ∠BAD = 40°, then ∠ACD is ______.
(A) 40°
(B) 50°
(C) 140°
(D) 60°
In ΔABC, ∠BAC = 90° and AD ⊥ BC. If ∠BAD = 40°, then ∠ACD is ______.
(A) 40°
(B) 50°
(C) 140°
(D) 60°