Hydraulic radius is the ratio of
(A) Wetted perimeter to flow area
(B) Flow area to wetted perimeter
(C) Flow area to square of wetted perimeter
(D) Square root of flow area to wetted perimeter
(A) Wetted perimeter to flow area
(B) Flow area to wetted perimeter
(C) Flow area to square of wetted perimeter
(D) Square root of flow area to wetted perimeter