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) 
math  Kiamora, Thursday, November 3, 2016 at 2:47pm
Yeah so add 20 plus 11 and get 47 , that's the short way , because once you do that , you'll easily get 2140.5 , you welcome.

math  Anonymous, Thursday, December 15, 2016 at 6:12pm
an equilateral triangle has a perimeter of 120 inches what is the area of the triangle answer in radical form