Answer:
Hi!
I see that you are new. Next time, it might be helpful to show us a picture, so we know how to help!
I think your answer might be similarity theorem though.
~CoCo
negative; -1/4
Step-by-step explanation:
According to hypotenuse
39²+b²=65²
b²=65²-39²
b²=4225-1521
b=√2,704
b=52 km
0.45
