You seem to be struggling now. You once again ignored every point except the suez because I happened to skip that one because I never looked into it. So let's look into it.

It turns out, you claim it's straight but have you actually shown that to be true? Cause it isn't. Check a map of the Suez canal

So now we know the numbers you started with are a lie, here's a telephoto shot of boats on the canal anyway, in the longest straight strip, showing them beneath thee horizon. Or was this a fake picture distributed across social media by the evil government, too?

Maybe you should save up a couple of hundred bucks for a plane ticket for a friend and do Eratosthenes stick experiment. It's cheap. You can probably find your answers for under $100.

Get back to me when your homework is done!