Homework Help: math

Posted by tee on Saturday, February 18, 2012 at 10:05pm.

the international space station orbits 350 km above earth's surface. earth's radius is about 6370 km.use the pythagorean theorem to find the distance from the space station to earth's horizon.

math - drwls, Saturday, February 18, 2012 at 10:37pm
sqrt[(6370+350)^2 -(6370)^2]
= 2140 km

The hypotenuse is 6720 and the radius (6370) from the center to the point of tangency is perpendicular to the earth's surface
math - Reiny, Saturday, February 18, 2012 at 10:37pm
let that distance be x

solve ...

x^2 + 6370^2 = 6720^2

( I got 2140.44)

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