IPA: /kwɒˈdræŋɡjʊlə/
KK: /kwɑːˈdræŋɡjʊlər/
Having a shape with four sides and four angles, like a square or rectangle.
The park is designed in a quadrangular shape, making it easy to navigate.
Quadrangular → It is formed from "quadra-" (from Latin "quadratus", meaning square) and "-angular" (from Latin "angulus", meaning angle). The word describes a shape that has four angles, specifically a square or rectangle.
Think of a shape with four 'angles' ('angular') and that is 'square' ('quadra-') — that's why quadrangular refers to a four-angled shape.