# geometry

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what is the maximum broadcasting radio from a radio tower 1800ft tall the radius of earth is 3960 miles and you can assume thtat the ground around the tower is nearly flat

• geometry -

For 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.

• geometry -

29

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