Answer:
Explanation:
Our problem reduces to the following. Given D = 65 miles, what is the length of the missing side? Let us call the missing side x
To find out the length of the missing side, we use pythogoras' theorem.
[tex]4000^2+D^2=x^2[/tex]
Since we know that D = 65, the above becomes
[tex]4000^2+65^2=x^2[/tex]
taking the square root of both sides gives
[tex]x=\sqrt{4000^2+65^2}[/tex]
which we evaluate to get: upon using a calculator.
[tex]\boxed{x=4000.52.}[/tex]
rounding to the nearest mile gives
[tex]\boxed{x=4001.}[/tex]
which is our answer!
