midpoint = (–9+6)/2 = –1.5
2. midpoint = ( (–1+7)/2 , (-1+3)/2 ) = (3, 1)
3. distance = sqrt((12-0)^2+(3-5)^2) = 12.2
4. distance between U and V = sqrt((110-20)^2+(85-60)^2) = 93.4
*distance from U to V and V to U is the same, and the plane has to travel this route no matter what.
then calculate the distance from T to V and T to U, so that you know which has a shorter distance.
[using formula: sqrt((x2-x1)^2)+(y2-y1)^2)]
distance from T to V(71.6) is shorter than distance from T to U(72.1).
hence, the shortest possible distance = (U to V) + (T to V) = 93.4 + 71.6 = 165 units.
