The displacement is the shortest path between initial and final position. Displacement = AC = (Under Root) √AB₂ + BC₂ = (Under Root) √15₂ + 20₂ = 25 m

Displacement is a vector quantity, it means its value can be positive, negative or zero.

As distance is the actual path covered, while displacement is the shortest path between initial and final position. So, Distance ≥ Displacement