Hello,

Your data seems to be insufficient,as there are 3 cases for projection at different angles ie. Projection from ground,projection form a height,projection from an inclined plane however following are the conclusions that I could arrive at-

1)At 6 different angles means that the range of the object will be maximum at 45 degrees.If the object is thrown at less than 45 degrees the range of the projectile will be small.

2)If the object is throw at an angle greater than 45 degrees it will mean that the maximum height reached by the object will be greater however the range will be less than the maximum range.

3)From T=(u *cos(thetha))/g,time of flight of object is directly proportional to the initial velocity of the object which here in this case is same for all angles at the object is thrown.Since time is directly proportional to cosint of the angle of projection (which is a decreasing function) increasing the thetha will result in decrease of time of flight.

Hope this helps.

All the best!