Enc 12
11
10
9
8
7
6
5
Point A
Point
3
2
Point B
1
o
0 1 2 3 4 5 6 7 8 9 10 11 12
AC, the road length from point A to point C
Length of horizontal leg_miles
Length of vertical leg miles
BC, the road length from point to point
Length of horizontal leg miles
Length of vertical leg_miles