Help please anything

36 ft

Step-by-step explanation:

The ratio of the lengths of the sides is the same as the ratio of the perimeters.

Just like one side (15 ft) of triangle ABC is 3 times as long as the corresponding side (5 ft) of triangle DEF, the perimeter of triangle ABC is also 3 times the perimeter of triangle DEF.

15/5 = x/12

3 = x/12

x = 36

36 ft

the answer is c

hope this !

its 50 miles away from the starting point