In this case there would be multiple velocity and launch angles. The formulae for projectile distance is
where v is initial velocity, g gravitational acceleration and theta is projection angle.
Now if d is given, then relation between v and theta will be,
Now, you can vary the theta from 1 to 90 degree in specific interval (e.g. 1 degree)and get corresponding velocities v and out the angle and their corresponding velocities in a table format.