because 46 is the minimum of the plot so the first blue line is the lower quartile so and it points in between 54 and 56 so therefore the lower quartile is 55
Using the rectangular route Mike rides 12 miles. If he rides diagonally the distance is √2²+10²=√4+100=√104. The difference between the two routes is 12-√104=1.80 miles approximately.
