I want to see the calculations.

Physics 
drwls,
That's quite a long name you have.
R = (Vo^2/g)*sin(2A) = 20,000 m
sin(2A) = 0.785
2A = 51.7 or 128.3 degrees
A = 25.85 or 64.15 degrees
I want to see the calculations.
That's quite a long name you have.
R = (Vo^2/g)*sin(2A) = 20,000 m
sin(2A) = 0.785
2A = 51.7 or 128.3 degrees
A = 25.85 or 64.15 degrees