Answer:
15 km
Step-by-step explanation:
The formula to find the hypotenuse of a right triangle
Is the square root of [tex]a^{2} +b^{2}[/tex]
a and b represent the side lengths so just plug in the side lengths for a and b
it doesn't matter which side you make a or b
square a and b
square root of 144+81
add them
[tex]\sqrt{225}[/tex]
solve
15
add your units and you're done
15 km
