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March 4, 2015

March 4, 2015

Posted by **Kenny** on Monday, January 9, 2012 at 7:27pm.

- geometry -
**Steve**, Tuesday, January 10, 2012 at 12:37amFor a tower of height h miles on a ball of radius r miles, the horizon is d miles away.

r^2 + d^2 = (r+h)^2

be sure to convert 1800ft to miles.

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