Respuesta :

EmmyPond
Hope this helps! Just use the Pythagorean’s theorem.
Ver imagen EmmyPond
awesomeargaming

Answer: 15 km

Step-by-step explanation:

Pythagorean triples is used for this:

Pythagorean triples= 3-4-5 (not subtraction)

Find hypotenuse (long side): Since 12 down, 9 left

a2+b2=c2

Formula: (9x9)+(12x12)=[tex]\sqrt{cxc}[/tex]

(c*c)= 81+144=225 (square root)

= 15km