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July 8, 2015

Homework Help: math

Posted by mike on Sunday, February 6, 2011 at 11:44am.

What's the minimum. length of the arc on the cicumference of the earth,where a curvature of the horizon is appearent?
OR---What's the max.length of cord,drawn
on the cicumference of the earth,where
length of the cord appears same as arc?
Follow up 2nd question---At what minimum
height above earth the curvature is noticable?

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