Juan Star for you.

a = √[(r + h)² - r²]

Have fun.

24,901 mile circumfrence.

8 inches of drop per mile.

16,600.667 feet of total drop around the circumfrence.

8,300 feet of total drop per observable hemisphere.

Can you fly a drone high enough at the north pole to see the south pole?

How about flying one high enough in New York to see Los Angeles, a mere 3,500 miles away?
It's only 2,333 feet of drop?

Don't forget that on a sphere, anywhere you are standing IS THE HIGHEST POINT ON THE SPHERE.

If this bullshit satanic math that you believe in was real, at a height of 24,900 feet, you'd be able to observe half of the earth at once.

Now explain international flight patterns that go 5,000 miles out of their way to make a connection when a straight line on the globe model is considerably shorter.

While you're at it, find a picture of the UN flag and overlay those flight patterns on that flat earth map they're sporting.

Enjoy the rabbit hole.