Reflector questions,

so I got the "euro reflector" from htg suppy. I've come to wonder, how raising this reflector will affect the light distribution.

if you raise a triangle, by twice its height, does this double the base?

my room is kind of rectangular, and unfortuantely i think becuase of limited room im going to have to mount the reflector parallel, vs perpindicular, if i did it the other way, i feel my reflector would spred the light more effectively throughout the floor space.

does anyone know of a light distribution document of the euro relfector. ?

my grow room im think is 22.5 inches by 39 inches, does this seem acceptable? going with 400w hps in euroreflector. what is the optimum size grow room for this reflector/ i.e. how high should the reflector be max?

and what percentage of a foot is 22.5 inches is it 187.5%

so basically 2 foot by 3.25 feet is the size of the grow room.
my reflector
Measures: 19" long x 11½" wide x 7" deep

i'm going to be having the reflector going lengthwise with the room. the reflector is only 19 inches long, so i'm kind of worried that the light isn't going to dissipate in the best pattern if i have the reflector going parallel with the room.

These charts should help you.

will it be okay to have the relfector going parallel with the room?

Horizontal bulb position. Pretty much all the light is radiated from the sides of the bulb. Long narrow grow room. I would hang my lights perpendicular to the length of the room. Experiment, you can always rotate your reflectors.