# 29. For a right angled triangle, if the sum of...

29. For a right angled triangle, if the sum of the lengths of the hypotenuse and a side is kept constant, in order to have maximum area of the triangle, the angle between the hypotenuse and the side is

(A) 12O

(B) 36O

(C) 60O

(D) 45O

Hint: