Question

Typical backyard ants often create a network of chemical trails for guidance. Extending outward from the nest, a trail branches (bifurcates) repeatedly, with 60˚ between the branches. If a roaming ant chances upon a trail, it can tell the way to the nest at any branch point: If it is moving away from the nest, it has two choices of path requiring a small turn in its travel direction, either 30˚ leftward or 30˚ rightward. If it is moving toward the nest, it has only one such choice. Figure shows a typical ant trail, with lettered straight sections of 1.7 cm length and symmetric bifurcation of..

Answer 1

http://www.solutioninn.com/physics/mechanics/vectors/typical-backyard-ants-often-create-network-of-chemical-trails

Answer 2

Is that figure the one you have?