quick question about 3 ft x 3ft air cooled hood

and i dont get how to draw this out on graph paper to design one like this so i could take a 4x4 ft sheet metal and cut/bend it and do it like this one..

could anyone be of help! plz thanks

anybody?? need someone who is good at math in here! -.-

i should of asked someone from a math forum, than a stoner forum lol

im confused ... are the pics of your sheet metal?

no, this guy made that from another DIY thread, i don't know the measurements on this...

I'm curious if anyone knows how to draw this out for a 3X3 Ft reflector or something around it...3.5 x 2.5 ft ...3x2 idc...as long as its around 3 ft lol

I don't get how he drew that out...still stuck on this project.. anyone can be of help or an idea thrown at this can be of help! thanks