Answer:
b = 8
Explanation:
Using Pythagorean Theorem, a
, we just plug in what we know.
We know that the hypotenuse, c, is 10 km. We also know that one of the other side lengths is 6 km, we can plug that into either a or b.
Now, our equation will be:
.
You could also use the equation:
.
Next, we'll just solve the equation.
,
b = 8
Good luck :D