The distance from A to B is 143 mi and B to C on another road 57 mi The distance from A to D is 143 mi and from D to E on another road is 57 compare the distance from A to C by way of B with the Distance from A to E by way of D
The distance from A to C by way of B is 143 mi + 57 mi = 200 mi.
The distance from A to E by way of D is 143 mi + 57 mi = 200 mi.
Therefore, the distances from A to C by way of B and from A to E by way of D are the same.