This is the 7874th most frequent Dutch word.
driehoekige
Triangular.
As an adjective, 'driehoekige' describes the shape (triangular) of the noun 'tafel' (table).
De driehoekige tafel staat in de hoek van de kamer.
The triangular table is in the corner of the room.
In this sentence, 'driehoekige' is used to describe the shape of 'vorm', indicating it is triangular.
De kunstenaar schilderde een driehoekige vorm op het canvas.
The artist painted a triangular shape on the canvas.
Here, 'driehoekige' characterizes the 'structuur', implying it has a triangular configuration.