Your calculations is based on a side view, not from the perspective of the person.
All parallel lines going away from you will converge to a point in the distance, where the ground meets the sky, or appears to. The horizon will rise to eye level at about 3 miles away from you, when standing on the ground. This is how perspective works.
Here is a video of p-brane explaining this to you. Watch it if you want:
THE SUN SETS JUST FINE ON A FLAT EARTH - THE MATHS ARE WRONG perspective
Why are you now bringing perspective into this? Yes there are dozens of concepts that appear to support the flat earth theory on the surface, but you don't get to jump from one to the other as they each fail under scrutiny.
I know how perspective works. Now tell me what could possibly obstruct your line of sight of the moon from atop Everest.
So you're saying that if you're standing at the tallest point of a plane, that some lower part of that plane will somehow "rise" up to block your view?
Your calculations is based on a side view, not from the perspective of the person.
All parallel lines going away from you will converge to a point in the distance, where the ground meets the sky, or appears to. The horizon will rise to eye level at about 3 miles away from you, when standing on the ground. This is how perspective works.
Here is a video of p-brane explaining this to you. Watch it if you want:
THE SUN SETS JUST FINE ON A FLAT EARTH - THE MATHS ARE WRONG perspective
https://youtu.be/W0Gx1vD1CRE
Why are you now bringing perspective into this? Yes there are dozens of concepts that appear to support the flat earth theory on the surface, but you don't get to jump from one to the other as they each fail under scrutiny.
I know how perspective works. Now tell me what could possibly obstruct your line of sight of the moon from atop Everest.
The horizon, as it rises to eye level. The horizon will always rise to eye level
So you're saying that if you're standing at the tallest point of a plane, that some lower part of that plane will somehow "rise" up to block your view?
Yes.