If the horizontal range is 2.5 times the greatest height, the angle of projection of the projectile, is

If the horizontal range is 2.5 times the greatest height, the angle of

1.	If the horizontal range is 2.5 times the greatest height, the angle of projection of the projectile, is
A.	57
B.	58
C.	59
D.	60 .
Answer» C. 59