11-1 Lines that Intersect Circles 8. The International Space Station orbits Earth at an altitude of 240 miles. What is the distance from the space station to Earth's horizon to the nearest mile?

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Below is the solution:

Use Pythagorean Theorem: 
radius of Earth squared + distance to horizon squared = distance from center of earth to Space Station squared. 
4000^2 + x^2 = 4240^2 
x^2 = 1977600 
x = 1406.27

Answer:1400

Step-by-step explanation: