The value of the distance given the height of 5km is approximately 253km
Circle geometry
The given triangle that is inscribed in the circle is a right triangle
According to the Pythagorean theorem;
(r+h)² = d² + r²
Given the following parameters
r + h = 6405km
r = 6400km
Substitute the given parameters into the formula
6405² = d² + 6400²
d² = 6405² - 6400²
d² = 64025
d = 253km
Hence the value of the distance given the height of 5km is approximately 253km
Learn more on Pythagorean theorem here: https://brainly.com/question/343682
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