Answer:
B) 178 mi
Step-by-step explanation:
[tex]a^{2} +b^{2} =c^{2}[/tex]
[tex]78^{2} + 160^{2}=c^{2}[/tex]
6084+25600=[tex]c^{2}[/tex]
31684=[tex]c^{2}[/tex]
[tex]\sqrt{31684} =\sqrt{c^{2}}[/tex]
178=c
