Answer:
The answer is the length of time in one time interval
17 + 2 = 19 km is 1/2 of the total length, that is,
19 = (1/2)h
(1/2)h = 19 multiply both sides by 2
h = 2*19
h = 38 km
The total length in kilometers is 38 km
A = LW
Divide both sides by L (To isolate W)
W = 
Answer:
B. sqrt 6 is the answer.maja