A fly crawls in a zigzag pattern along a line where the angle that successive straight-line segments of its path make with the general direction of motion is 60 degrees. The total distance the fly crawls is twice the distance between the end points of its path.

Question

Quizplus · Accepted Answer

The zigzag pattern described forms an equilateral triangle with each side equal to the distance between the endpoints. Thus, the fly travels two sides of the triangle, which is twice the distance between the endpoints.

A Fly Crawls in a Zigzag Pattern Along a Line