Respuesta :

Answer:

12 km

Step-by-step explanation:

C is 5 km

4+3+5=12

pls brainliest

Answer:

5

Step-by-step explanation:

You would use the pythagorean therom which is a^2+ b^2=c^2

4^2+3^2=c^2

16+9=c^2

25=c^2

5