It's too much for my meager math skills.
I'm trying to build a birdfeeder for my wife for Christmas that replicates the gazebo-shaped addition off the back of our house.
The addition has an eight-sided roof that comes to a point in the center, kind of like a squat steeple.
I can calculate the pitch of the roof easily enough, but it's going to be made out of eight pie-wedge shaped pieces of 1/2" ply, and the sides (interior edges) of those pieces need to be beveled to fit tightly. I don't have a clue as to how to calculate the angle of that bevel.
A friend sent me a solution that might be perfect, except I don't understand trigonometry, so I have no idea what he's talking about.
Something tells me there's an easy way to do this. I would bet that millions of such shapes have been created by craftsmen with no knowledge of trig whatsoever.
Here's the basics: The roof of the feeder will be 14" across at the base. It will be 3.5 inches high at the center. At what angle do I need to bevel the pieces so they'll fit together at that pitch?