Two flies crawled along the ceiling from one corner to the other: one horizontally and the other along the walls.

Two flies crawled along the ceiling from one corner to the other: one horizontally and the other along the walls. What movements did each fly make if the ceiling width b = 3 m and the length = 4 m?

The displacement is equal to a vector, the absolute value of which is equal to the distance between the start and end points and does not depend on the specific trajectory. Consequently, the flies made the same movements.
Since both the length and the width are given, it seems that the flies crawled into the corner opposite diagonally.
We find the length of the diagonal using the Pythagorean formula:
C = √ (a² + b²) = √ (4² + 3²) = √ (25) = 5 m.
The absolute value of movement for each fly is 5m.
Answer: 5 m.